Compulsive paintball (
http://www.compulsivepaintball.com) usually stocks them also. Sorry to say that I picked off the last one

But I did to speak to John (staff) who said they should be getting another shipment in sometime soon. Only problem is that PBX doesn't usually send them as many as they order so they tend to go out of stock REAL fast!
Guess PBX wants to keep the profits for themselves

Guess I can't blame them.
... oh and there's a guy on eBay that's always selling one. The reason I think he's always selling it though is because he's charging a premium on the fact that no one else seems to have them in stock...
hope that helps!