It's also a 24-core, dual-socket (12-cores per socket). There's a couple left on ebay: http://www.ebay.com/itm/HP-Z800-Workstation-2x-Xeon-x5670-2-93GHz-24GB-9

It's also a 24-core, dual-socket (12-cores per socket). There's a couple left on ebay: http://www.ebay.com/itm/HP-Z800-Workstation-2x-Xeon-x5670-2-93GHz-24GB-900GB-HDD-15K-Quadro-5000-No-OS-/381874764533?hash=item58e9827af5:g:saoAAOSw44BYJQoa http://www.ebay.com/itm/HP-Z800-Workstation-2x-Xeon-x5670-2-... The one downside of this box is that the power supply is totally proprietary to HP. Well, the motherboard too. So if one of those craps out, you're done, unless you can locate a spare cheaply. It's also reeeeaaally heavy and draws a lot of power.