I want to run a 3 monitor set-up with one card if thats possible.only have one pci-e slot on my mobo intel dh67cl, core i5 2500, 4gb corsair xms ram. Was looking at a radeon 6950 2gb or a radeon 6870 1gb. Of course I would love to keep it under 200 bucks. Both have eyefinity but since i am doing this on one card would the extra gig of memory cause less streess on the card and better performance???what would you suggest???