I agree with the previous post. Paintballgear.com is a great place in my opinion. If you talk to Dave, tell him Tommy in Nebraska sent you (he'll know me, I'm a pain in the @$$
I've always had good luck with eBay for everything else, but the paintball section is absolutely LOADED with users that have tterrible feedback. This can't be a good sign. Just be very carefull who you buy from. I just sold a 'cocker on their last week and the buyer is extremely happy with it, but if you go through the current auctions and click on all the user's feedback ratings, you'll see some reeeally bad stuff.