a 690 is overkill.
what is a build without overclocking? why are you spending so much and not overclocking?
at this rate, all you need to spend is 1500 to achieve the same gaming performance that you can actually see
just saying, you can get bored of the phantom's design real fast
this is all you need. you can pretty much play everything at max. AA in metro 2033 will not be maxed with both a 690 or a 670, therefore dont try. same goes for the witcher 2
a 670 performs the same as the 690 if you are using a 60hz monitor
http://pcpartpicker.com/p/qLLQ