Well, I just picked up a used 2005 RockShox Reba Team with Poploc and U-Turn on Ebay for less than half of what they go for on clearance; I'll let you know how it goes if you care at all
. Seals and bushings aren't a huge deal to replace (or have replaced), but make sure the stantions and especially any magnesium parts aren't hurt.
Also, be careful buying Fox forks on Ebay, lots of OEM models from take-offs are being mislabeled from the last time I looked. Just check the picture in the auction extra carefully. Fox's OEM models aren't bad, but they're not worth what their after-markets are worth, obviously. (I was considering going with a Fox, but decided to give the much, much cheaper RockShox Reba a try first; I have no frame for it yet though, so it'll be a little bit