All looks good, except for the cooler. That zalman is rather expensive and does not cool as well as the competition (plus it is louder). Something like
this would be a better bet.
As for the graphics, that gainward card is very nice. However,
this card is cheaper, has very similar performance and a second card can be added in the future in crossfire (may want a 650W PSU for multi-GPU).
Both the chip and mobo are very nice.