Can I get some opinions on who makes the best GTX570 GPU? I'm in the process of building a computer and so far have decided on i5-2500k, z68 or p67 chipset(likely gigabyte or asus I think, still reading up on mobos), 8gb ram(2 x 4gb), 1tb HDD, 64gb SSD(may go higher once everything else is priced out), corsair 600t white case, 750w psu(brand undecided). So anyway at the moment I'm a bit burnt out on reading up on mobos so I'm gonna start looking at graphics cards and would love some recommendations I can read up on. My plan is I want to start with a single GTX 570 and later when price has dropped grab a second and go sli, I know I could likely get better performance now by going sli with 2 older cards but I'd rather go the single to sli down the road route I think.