I wanted to refer you guys to a book that has helped me a lot. There is a free PDF download of the whole book as well as online web format. It's called "Scientology: Theology and Practice of a Contemporary Religion". It has helped me a lot when talking to the "academic" types who want to know the theology and how it compares to other Eastern philosophy/religion. It's well written. I'm surprised the orgs don't promote it as much.
Check it out....
http://theology.scientology.org/