In 2007 Hewlett-Packard began selling a PC called the Blackbird 002 that allows gamers to use either a pair of Nvidia graphics cards or a pair from ati, and change between them as easily as changing socks.

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If the HP Blackbird 002's good looks weren't enough to justify is sky high price tag for you, than perhaps HotHardware's review of the top-end gaming rig will be enough to push you over the edge.

ENGADGET: HP Blackbird 002 gaming rig reviewed

In 2007 Hewlett-Packard (nyse: HPQ - news - people ) began selling a PC called the Blackbird 002 that allows gamers to use either a pair of Nvidia graphics cards or a pair from ati, and change between them as easily as changing socks.

FORBES: Shoot To Kill