If you don't use it for gaming, video encoding or brute forcing stuff than go for a cheaper card (with a silent cooler) and spend the extra money on the CPU and RAM. There's no point in an expensive video card if you're not gonna use it.
i7-930 + 3 x 2gb Corsair.
Gaming I do, just not... 40 hours a week, ya know? (and I don't want an ATI card, and I want DirectX11 and to future proof myself)
If I don't put together the computer I want... I will buy a new one in a year and just spend more. lol.