Fumblin,
I'm using a 92 S-10 bench seat. The seat has to be placed just right, but works great. It is a little on the high side with gas tank still in so if you are vertically gifted..you might not like it. I've also read on here that the third seat out of suburbans or Excursions work.
Also..you can get a seat kit for about $150 and do it yourself. Have the springs sandblasted, paint em up and recover your seat. My old seat is up in the rafters and will probably be re-done and the S-10 seat taken out.