get the asus p78p55d e pro, an i5 760 and a gtx 460, you wont regret it, i myself did a lot of research for my build earlier on an i landed up getting the p7p55d e pro, a gtx 460 and an i5 760, and later on i added a second graphics card, my gtx 460 ran battlefield bad company 2 very smoothly at my resolution 1920x1080, i did not regret my buy at all and i had a post that had 22 replies in the homebuilt systems and 90% of the replies suggested that i get the exact components that i have, i had replies from timop and hunter and davcon, i do not regret my build at all and a friend of mine has an amd build with an x6 1055t and 2 5850s, and i get around 5-10 fps more than him in games and hes overclocked his x6 , the asus p7p55d e pro is an awesome motherboard, and i think x58 is a waste of time for you, yes an x58 build with an i7 930 and up would be better at cpu intensive things but in gaming there is no real time difference at all, and having 2 x16 slots will not benefit at all for the price paid for the x58 system, as said earlier 3% difference between p55 and x58 with two hd 5870s crossfired, so build that i would recommend is an i5 760, asus p7p55d e pro, gtx 460 1gb, samsung spinpoint f3 500gb or the 1tb depending how much space you want, 1 of these brands of PSUs corsair, antec, xfx, seasonic and so on, a good 650 watt should SLI two gtx 460s as its not a power hungry card like the rest of the gtx 4xx range, some gskill ram 2x2gb modules and 1 of these cases if you dont have a case, antec 300, antec 300 illusion, coolermaster haf 912, coolermaster 690II, coolermaster storm scout, coolermaster haf 922, or antec 900 etc