This is a random thought, but how cool would it be to see Chirs Nolan do a Chuck Palaniuk adaptation? And, i think that Lullaby would be the perfect fit for Nolan. It is the most ready made of Chuck' novels to adapt and it has a very Nolan-y ending. I love this book and i couldn't see many other directors doing a better job.

http://en.wikipedia.org/wiki/Lullaby_(novel)
Just realized everyone might not know what the hell I'm talking about lol

Lullaby is great! but its not as great as Choke and Fight Club in my opinion..

its hard for me to say anymore lol i've kinda killed both of those books for myself. Choke was the book that got me into reading. I read it after i saw fight club lol. I think after fight club though, the best fit for a adaptation for Nolan is Lullaby