Jetavan- I think it is important to make a distinction to what Origen taught, what he theorized, and what ended up getting taught in his name after his death that earned "Origenists" a resounding condemnation in the first canon of the Quinisext council, of which transmigration of the soul is indeed listed and Origen's teachings on the subjects were used as justification of this belief.
That the American concept of the transmigration of the soul is slightly different than what would have been taught by Pythagoreans, Neo-platonists, druids, or even Hindus and Buddhists is more an indicator that the prevalent "religious marketplace" of America is influenced by the same conditions that brought about the heresy to begin with. Just as after Christ many tried to mix and match Christian belief with popular philosophies and alien piety, so too in our murky age has religious syncretism re-birthed many heresies once thought defeated a millennium ago. And just as heretics a 1500 years ago would be more than willing to use a few "theories" and follow them as "gospel truth", so today do Americans place great meaning in disputable sources.
The American tendency to go chasing after strange beliefs and foreign "wisdom" has created a nation of heretics to ALL religions. Imagine how offended an American would be if he went to a true Lama (and not one of our "past life guides"), only to discover in a past life he was not Henry VIII at all, but a lowly housefly.
As far as Protestants believing in the "evil eye"- I remember with fondness my grandfather's library, one of those great havens of books no matter how out-of-date or ill-researched. Along with great books on the "end times" (most of which posited the end of the world right around the time I was born) we also had a great wealth of "research" done by Evangelical authors on the occult. Such authors often gave far more credence to the powers of magic and witchcraft than most "witches" I've met since!