this is my current reg:
GPU: evga GTX 570 "I think it's the oc'd one"
Cpu: i5 760*
PSU: 750watts Silver Stone*
Ram: x2 DDR3 4.0gb/1600 Kingston*
OS: Windows 7 64bit
case: gigabyt 3d aurora
I'd like to upgrade the system and run SLI GTX 570 " If It wont run gw2 decently I can go for gtx 6xx"
also I want It to be able to run SLI GTX 670-680 OR 690 in the future.
so could any one please tell me which parts should I change"mobo, cpu ... etc"