Hmmm. I don't really draw inspiration from *atheist* writing. Maybe that's because I was an atheist for over a decade before those Horsemen came out with their books, and it is not such a big deal in western Europe anyways. The God Delusion was an amusing weekend read to me, not much more. I draw much more inspiration from people's writing about science - Dawkins' other books are mostly great in that respect. Dennett is very interesting, too, but his work is much less populistic than the other three "Horsemen".
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition