I need to build a 1300$ PC for a friend and I have an idea where to start but i'm not sure. He needs the PC to be SLI ready(for later use) and the build doesn't need to include the OS or keyboard/mouse.
Check out my $1100 build here: http://www.squidoo.com/electronicandmore
Save some money and still get pretty similar performance. You can always go for the GTX 670 if you want but the 7950 is a pretty solid card at its current price point.