That looks like a pretty incredible motherboard. I'm loving those hardware overclocking buttons. It seems a shame though, that it is a X58 board when that chipset is on its way out the door.
I have to disagree. The 6970 is quite a bit overkill for 1920 x 1080. Honestly a 6870 would be perfectly fine to run most every game with max settings at the resolution. That said, that isn't the answer you are looking for, and the 6950 will give you some room in the future if you decide to hold...
It seems crossfire 6850s (or even 6870s) are still a hard combo to beat, but the 570 is one attractive card. My trigger finger is itching over the evga one.