I just picked up a 20" aluminum iMac for $800. It's maybe 6-8 months old, 2ghz C2D, 1gb ram, 250gb hdd. Came with wired keyboard and mouse and wireless keyboard and mouse, a 4 port usb hub, and the remainder of a 4 year Best Buy warranty. I brought it home and wiped the drive, reinstalled Leopard and all my apps. Quite peppy, I'm really happy with it's performance and how quiet it is. I think I will be adding another gig of ram in the near future though. So this is my second Mac, and I think I got a good deal on it.