I gonna say that the

http://www.tomshardware.com/reviews/...tx,2270-3.html

Radeon HD 4870 1 GB is a solid buy right now, even though I myself only buy nvida cards.


For $500 plus you can get this 2 gpu, 1.7G card ... .

http://www.newegg.com/Product/Produc...82E16814121296

Or for who know how much you can go to 3 gpu's:

http://www.pclaunches.com/graphic_ca...phics_card.php