Will probably get shot down for posting this:
http://www.amazon.com/Journeys-Out-B.../dp/0385008619

But I found it an interesting read and whilst I don't know where I stand on whether Astral Projection is real or not, I found that an interesting read and a lot of the things you are experiencing are described in there from a perspective that it is real of course.

Love lucid dreaming and love trying to do experiments to see if there is any more to it than just flying around in your subconscious dream world. Obviously so far I've found nothing concrete to suggest it's anything more than a dream