$859 USD last I checked.
you are kidding me right? specially at 6990 4GB at 699$
My guess is 599$ is fair
$599 seems fair for new. I have seen used on ebay for $450 buy it now as well. Prices may drop with the 6990 as serious gamers will want it and sell their old cards. Much depends on the supply of 6990's as these gamers will not sell until their 6990's arrive in hand.