*www.thinkdigit.com/forum/pc-components-configurations/96218-hardware-price-list-spec-sheet.html
^^look here.
more precisely, here :
*www.thinkdigit.com/forum/pc-compon...rdware-price-list-spec-sheet.html#post1445326
pick one within your budget. tho a 6670/6770 will just about work for you (provided you keep down the settings a bit, im talking about 1440x900 @ 4x AA and medium settings)
if you want a bit more quality, go for the 6850.
i dont know much about the new 7xxx series, except that only 79xx cards have been released.