I hope you realize that according to the latest rumors Ivy E may not release at all, and in case it does, that might happen some time in 2013, or even the second half of 2013. By that time we would have Haswell and before that Ivy. Going to Haswell be a reasonably big jump for you, but otherwise don't expect too much real world gains. Though a SLI 2011 nearly competes with Tri SLI 1155, I wanted to point this out in your favor