Im not sure if any of you guy's have looked into these fuzzing frame work's i think its great and saves alot of time.Also on the site you can get
Chapter 21 of the book brute force vulnerability discovery,Which i found to be a good read.Im sure it was shown at defcon 15.There still working on bug fixes but looks good with a easy to use api.I think it is going to be one to watch out for in the future.
http://www.fuzzing.org/2007/08/08/post-vegas-update/