Got to go out for a while but will be back online later, while I`m away have a look at the attached list of parts and see what you think http://pcpartpicker.com/p/LoS7
NB: I would consider Windows 7 Pro for the OS but wanted to check with you first.
Not bad, but that processor is WAY too over powered.
Drop down to an i5-3570k and upgrade your GPU to a 680.
You can easily over clock.