This is a DUAL GPU (2 x GTX 460)!
I know its an older version, but its from one of the best brand names in
video cards and with this dual GPU it should run faster than a 580 in many
instances. Will require much more power than a 580 though.
Cheaper than previous listing for this item.
Link: http://www.tigerdirect.com/applications/SearchTools/item-detail
Im willing to bet you can use the stackable Visa or American Express deals
as well. Might have to call for that though.