Thank you for coming on here and joining us and expressing your questions and concerns, welcome! I hope you will make this a place you often come and visit and we will all do our best to help your inquiries.
Now, onto some of your questions...
I'm honestly not sure about "Why Orthodoxy?". I know it wouldn't work for me to be in one of those fluffy contemporary churches, one its not my style and two I don't find it very fulfilling or honoring of God. For some reason protestant hopping seems silly, although there are differences it's just one form of protestant to another. Being a Lutheran I'm a bit of a Romeophobe in general and specifically I don't buy Rome setting itself above the other patriarchates (correct term?), it just seems...egotistical. Maybe I need to sit down and list things out "Like/Don't Like Lutheran" and "Like/Don't Like Orthodox". Please don't get the impression I am church shopping just to find something I "Like" I want to find the church of Truth, I just might not use the correct words to describe things sometimes.
so ... "Why Orthodoxy"? It looks like you've pretty much answered it yourself. Your curiosity is not trivial but comes from The Lord God Himself and His Holy Spirit working in your heart to lead you this direction. As Christians, we know that there are no coincidences. Thus, this is no coincidence that you're here.
I was reading up on infant communion this morning and I almost brought it up to her. I really just need to man up and speak with her about it. No good excuse on this one.
Have you read up on Infant Baptism? Maybe that may help you understand infant communion a bit more. If you could get your hands on this little booklet, it may help you in that respect: http://store.ancientfaith.com/5-pack-infant-baptism-what-the-church-believes/
Plus, if you read such works as "Apostolic Tradition" by St.Hyppolitus of Rome
(Early Christian writing from 235 A.D
.), he talks about how Baptism was followed by Chrismation and finally communion. So ... this was done in the early Church. If you're skeptical about the year, 235 A.D., it doesn't mean that the "Tradition" started at 235 A.D. St.Hippolitus of Rome is writing about what was taught to him by Saint Irenaios of Lyons who was a disciple of St.Polycarp of Smyrna, who was himself a disciple of St.John, the beloved, the Apostle and Evangelist!!!!! So, you're "safe" when you read this Early Church practice.
Pertaining to Sola fide and Sola gratia which although different essentially boil down to that works and merit don't get you into heaven. To myself as a Lutheran, works reflect my (very poor) attempts to be a Christian and show Christian character to the world, essentially an outward display of the faith inside me. Maybe I just don't understand the Orthodox position, and if I don't please correct me with kindness, but I am under the impression that works and merit don't get one into heaven if your Orthodox either.
One thing you will learn about Orthodoxy, the more you investigate it, learn about it, assimilate it and incorporate it into your life (because it truly does change your life -for the better!) is that even the way you speak about Christian vocabulary will change. For example, in Orthodoxy, "assist into entry of heaven", "merit heaven" and such terms, are more of a protestant phrase and if you really look at it, it is very much a narrow and superficial way of describing salvation. It sounds like you're buying a ticket to go on a ride, just to "make it." The more you read about Orthodoxy and history of Theology between the east and the west you will also discover that that is a "judicial" (juridical) way of looking at salvation as well. Orthodoxy concerns itself with transformation of the human person into a more Christ-like being: what we Orthodox call: "a life in Christ", "Theosis"; Deification. Look up the term salvation in its latin and greek meanings and you will see that it means "to be made whole and healed" -obviously, for us to be "healed"; it means that we're "sick." We have an illness; the illness is our propensity to sin and commit it. This has to be "cured." In a previous post, I wrote the following (with some additions):
" The issue here is "Salvation", is it not? I think it is very important to begin by looking at what "Salvation" means. "Salvation" means to be made whole, to be healed. Now, for us to be healed, it is obvious that we must be suffering from a sickness and that sickness is sin. In order to be healed -as I stated initially- the Holy Orthodox Church; the Body of Christ, has given us many medicines to help us be healed from the illness of sin. This includes, being in the Life of the Church and not exclusively faith, nor exclusively by works." In the Orthodox Church -unlike how many protestant denominations are based- we do not isolate one aspect nor emphasize more than others- like faith vs. works, for us, faith and works are one, and one is the entire life that the human being intends to live in Christ. We never say things like: "merit." It does not form part of Orthodox vocabulary. Instead we talk about striving to live a life where we, through the help of the Grace of God and our cooperation; a harmony towards a transformation of the human being which is both creation and spirit; flesh and spiritual towards that end where we will stand before the judgment seat of Christ, where we will then only be saved by His mercy. That is why we say: "Lord have mercy" so much; because -ultimately- God's mercy will save us and the Lord God will grant us this mercy if we have also been merciful towards our fellow man. In other words, if we have lived a life, just like Christ lived it: in LOVE and MERCY all the way to death -and beyond!!
If you're concerned about the role of works for salvation. Read this:
Holy Gospel according to St.John
 Marvel not at this: for the hour is coming, in the which all that are in the graves shall hear his voice,
 And shall come forth; they that have done good, unto the resurrection of life; and they that have done evil, unto the resurrection of damnation.
St.Paul 1st Epistle to the Corinthians, Chapter 3
 Every man's work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man's work of what sort it is.
Also, ask yourself: "do you think there is anyone in heaven who hasn't done a good work?"
Finally, a book which could help you greatly in your understanding of salvation in the Orthodox concept:http://books.google.com.sv/books/about/The_Life_in_Christ.html?id=iE45LzrfZuwC&redir_esc=y
With sincere good-faith, I would highly encourage you to listen to the following podcasts from Ancient Faith Radio, explaining Salvation, Redemption, Justification, etc. and the "role" of Our Lord, God and Savior, Jesus Christ in all the former.
This will be a wonderful way for you to understand and to sort-of, save you a bit of reading -of course, that could follow, if you're further interested. These talks were done by a former, Baptist/Evangelical, Dr. Clark Carlton. This is not just your average "convert" from protestantism to the Holy Orthodox Church but someone who went to Baptist Seminary and is actually a professor at Tennessee Tech teaching philosophy and logic.
I think it will be extremely beneficial for you to not only understand the Orthodox perspective on such topics but most important, that it is explained by someone who's "been there"; who comes from a similar Christian background as yours.http://www.ancientfaith.com/search/results/eeb9575d6ff55537f5e525194394fad4/
The recommended podcasts to download:
1. What Christ Accomplished For Us
2. What Christ Accomplished For Us
Ancient Faith Today
3. Clark Carlton on the Essence and Energies of God
* Specials Programs
4. The Essence and Energies of God
Also, some very wonderful talks that Father (Monk) Damascene did where he also touches on all of these topics with the starting point of the creation of Man, the original intention of God for mankind and the creation: to be united to Himself (which is "salvation").http://www.ancientfaith.com/search/results/a5798b5a8240ad47f7ce1829e024c875/
podcasts to download:
1. Christ the Eternal Tao - Part 2
* Specials Programs
2. Christ the Eternal Tao - Part 3
* Specials Programs
-I know it says: "Christ the Eternal Tao" but that is only because of part 1. Part 2 deals more with God, man, salvation, etc. Plus it has question/answer session at the end.
If you like these -or if you're not able to download them and want to read- and feel more hunger, some great books to read are the following:
1. Nikolas Kabasilas - Life In Christhttp://books.google.com.sv/books/about/The_Life_in_Christ.html?id=iE45LzrfZuwC&redir_esc=y
2. Kallistos Ware - The Orthodox Wayhttp://www.barnesandnoble.com/w/the-orthodox-way-kallistos-t-ware/1000524417
here you may find a pdf version of the book (check if it is safe to download):http://kickass.to/kallistos-ware-the-orthodox-way-pdf-t7529215.html
3. St.Innocent of Alaska - The Way Into the Kingdom of Heaven -- I found it FREE!!! on here:http://orthodoxinfo.com/general/kingdomofheaven.aspx
Wish you much success and proper understanding in your search!!