All the Discworld books. (That'll keep you going for a while LOL.)
Spot on Ryn. Anything by Terry Pratchet is great! And Neil Gaiman as well.

For something completely different have you read The Time Travellers Wife? Its a lovely book. I've read it twice and refuse to see the movie cos I don't want to ruin the experience of the book.

I'm currently re-reading One Flew Over The Cuckoos Nest by Ken Kesey.