So I think I am going to go with an i7 930 and 6 GB mem. I'm trying to minimize the costs, and not sure if it's really worth it to get a new high dollar vid card so my question is what if any real benefit, other than DX10/11, will I get with a card in the $150-$200 range, considering I am already using a crossfire steup with 2 x1950xtx cards?