Heroin Diaries was amazing.
Born Standing Up: A Comic's Life was good; it's Steve Martin.
Maybe not really autobiographical, but I liked The Salmon of Doubt, which was Douglas Adams. It's some posthumous collection of previously unreleased articles/short stories, as well as his musings on life.
Geisha of Gion was written by the woman Memoirs of a Geisha was based off of. They took some liberties with her life story, so she wrote about her own life to clear it up. Might be more of a chick's book but I found it fascinating.
The next book I want to read is Kitchen Confessionals; I'm a culinary graduate so things like this interest me, and ALSO Anthony Bourdain is just awesome. I love him.