Re: New Computer Advice (non-overclocking build?)
I would spend the few extra $$"s on the Asus mobo over the Gigabyte.
I have (2) GTX 480's and I'm happy, but if I was going to buy a card now I'd spend my money on the GTX 580 and spend less on the SSD. The G.Skill Phoenix Pro 60GB or the OCZ Vertex2 or the Agility2 60GB drives are your best choices. You can always add a 2nd SSD later, if you need it, at a cheaper price.
Everything else looks good to me, unless your thinking about SLI later. In which case I would get a 1000w power supply from Corsair, Antec or from another "Good" brand name manufacturer.