If you are still looking for one, my brother has a S20 tranny laying in the garage that he told me to list for $250, which means he will probably take $200. If you are interested, PM me your number and I will have him call you. He was planning on going to pick up some stuff at Harbor Freight tomorrow, so if you are going to be around Marietta, he could drop it off.

Pics here:
http://forums.importatlanta.com/showthread.php?t=65099