I would not get a MB with only 2 slots.


The 6950 is a very good choice, of course the 580 3G is better but any 2G card is going to be solid and the 6950 is better then the 460 for sure.

The 6970 is not worth the extra $100 or so at pccase.

And they don't even have the 460 so for you the 6950 is the best buy for the buck.

The 580 will come down in price and you could upgrade to it later when its cheaper if needed.