Seems pretty good, though the performance of the 760 is a bit better than the 7950, at a cheaper price. Not a fan of Nvidia myself (I will never again buy one, due to past experiences), but if you have no qualms with Nvidia, I'd say go for one of those instead.
I'd suggest a PSU with a higher wattage myself, in case you decide to OC at some point. I have a similar build, and I have a 750w PSU.
I second going for a Caviar black instead of blue (apparently I can't read >.> I though it said black), or just grab an SSD for boot.
The only thing I would change would be the PSU. Stay away from Cooler Master PSU's if at all possible. I have a Sapphire HD 7950 in one of my rigs well actually a Crossfire setup and they are really very good GPU's not to say my GTX 670 SLI setup is bad it is not. But at least on my rigs all of which are Eyefinity/Surround setup AMD/ATI is miles ahead in that area. Off subject I know and it is not something most people even use I just prefer AMD/ATI.
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