Haha, jinx my friend sent me that...I would look for a build like this :-
Gigabyte GA-Z77-D3H for the Motherboard,
Intel I5 2500k for the CPU (boring I know, but still the best for the money),
An NVIDIA GTX 670 (2GB) rather than the pricey but not much better performing NVIDIA GTX 680,
(Or a GTX 570 if you can't afford the GTX 670 as you get about a third less performance (FPS wise) and it costs about a third less).
Bear in mind that you are stuck with 1600 MHZ ram for that Motherboard and it only supports Crossfire for dual GPU use (the second PCI slot is restricted to 4x).
This build is aimed at a Bang4Buck purchase. You may want to spend a bit more.
And he's not wrong by the sound of it. Add some Corsair Vengence Arctic White ram as you can find it cheap in a lot of places (because it's white it's not a popular choice despite being good ram). For the GFX, the EVGA 570 HD Superclocked seems good for the money too. For a PSU, I have a 600w Corsair Builder series CX V2 and have been more than happy with it's stability and quality despite being a budget PSU. I paid about £48 pounds for it (probably about $70-$75) and it has been a good buy for me and my GTX 560 ti and should be enough for a single GTX 570.