Von - There's some pretty interesting stuff in the bike shock world, alright. I had no idea. It's been a long time since I did any serious bike riding.
I looked at about 6 different shock manufacturer sites, but none of them tell you the dimensions of the shocks. They all mention that they make the best there is, of course, but they only say which bikes they fit, which doesn't help me much. So, I printed off the phone numbers for the ones that seemed to have the widest range, and I'll call them Monday. Thanks for the lead!