What is your CPU clocked at? 6870 crossfire may be a little more "even" with your CPU, IMO. 6950s (6970s after you flash them) are overkill in crossfire for games today (and likely for a while) anyways. *shrug
If you do go the 6950 route, be sure to flash them to 6970s (look it up, if you haven't). Then you'll be able to tell if you're bottlenecking them or not if you get a significant increase in performance.
Ah ic you're looking for crossfire in the future. Maybe BD (BullD
ozer) will work on your mobo in the future. *shrug
Nvm I guess.