I really like Immaculate Deception II: Myth, Magic and Birth. I think many of the birth stories at the end are wonderful.
Birthing From Within is good, IMO, if you have had a previous negative experience. The artsy stuff is not for everyone, but I do think there are several great sections for examining your feelings, beliefs, worries...
This may be out of the realm of what you are looking for but a great piece of historical fiction about birth/midwifery/female community is The Red Tent. I don't remember the author but it was a really great book.
I also love Baby Catcher.
Ina May's guide to Childbirth has a lot of great birth stories.
Heart and Hands, which is how to be a midwife type of book is good.
In Labor by Barbara Katz Rothman is an older book that is very interesting, more academic than the others
A Midwife's Story is another great midwife chronicle
A Good Birth, a Safe Birth and The Thinking Woman's Guide are also good reads.
I'm a birth book junky, myself, and hope somebody will post some good books I haven't read, so I can check them out myself!
Birth as an American Rite of Passage by Robbie Davis-Floyd is one of my all-time favorites. It's an anthropological look at birth and the opposing viewpoints (techonology vs. holistic) of pregnancy/birth. It is absolutely fascinating (although some of it is on the academic side--there's plenty of stuff for us lay folk). There are lots of mothers' stories and a completely engrossing chapter on medical school/training which was eye opening.