after continuing to research this, i ended up ordering one of these to try:

http://www.bycycleinc.com/

i had a chat with the inventor, and i was impressed with his knowledge of anatomy and the thought he put into the saddle. might be a bust, but we shall see.

at some point i'm definitely going to try the brooks or the selle anotomica.

the latest "rivendell reader" has a favorable article on the selle, and rivendell has always been big brooks fans.

i really appreciate everyone's help and input!