I used to soak up evangelical preaching and teaching on the radio. I loved to listen to R.C. Sproul, J. Vernon McGhee, Charles Stanley, Chuck Swindoll, John MacArthur, David Jeremiah, and others. When I first became Orthodox, I still listened to these people for a while. But I soon realized that I would never understand Orthodoxy unless I "de-programmed" myself from evangelical errors.
By the grace of God, I have met Orthodox friends online who have generously sent me CD's of Orthodox sermons and Liturgies. These resources have been a real blessing to me.