I love sacreligious humor. Read "Lamb: The Gospel According to Biff, Christ's Childhood Pal" by Christopher Moore and laugh your ass off.

If you would rather not tempt fate, I'll recommend "Catch 22" by Joseph Heller or "Even Cowgirls Get the Blues" by Tom Robbins. Both are hilarious.

For semi-dark humor, "The Virgin Suicides" by Jeffrey Eugenides is pretty awesome.

For an "experience", check out "House of Leaves" by Poe's bro, Mark Danielewski. Some parts will make you roll your eyes and say "aw, come on!", but most of the book will probably leave you frightened to turn off the light. Creeped the fuck out of me, that's for sure.

Anyway, there you go.