I have For Adolphe Sax and Machine Gun & a few select live ensembles (but not Nipples or More Nipples).
Peter Brötzmann is one of the free jazz players that I actually can stomach and like.
I wouldn't know which one to recommend, but there's oodles of info and a few media links (QT vids, interview, etc.) here:
http://www.efi.group.shef.ac.uk/mbrotzm.html