I'll agree with everything that's been said above. You can pick up a used one on Ebay for under $400. There's nothing fancy about them, they just sound great. With the money you save, you can get some JJ tubes and upgrade the speakers. If you're handy with electronics, there are some mods that can be done to it to really take it to the next level. I can't recommend these amps enough. They can do everything from beautiful clean to hard rock distortion. I wouldn't really recommend it for extremely heavy metal, but it'll do Judas priest and Iron Maiden no problem. And of course, Peavey's customer service is the absolute best in the industry. They once sent me $30 worth of parts for my Wolfgang free of charge, even though the guitar was no longer under warranty.
Ryan