I haven't read the book, but it looks promising, from an author after my own heart.
Review from Sam Seder, Air America Radio,
Radosh has discovered a world that is hilarious, unpredictable, and lucrative! It seems there's a foreign country in America and it's right down the street...and now I'm not so sure that I'm not the foreigner.
Rapture Ready!: Adventures in the Parallel Universe of Christian Pop Culture
Rapture Ready web site
Daniel Radosh's Blog