for the games you've listed your build is "ridiculously overkill" by a LONG shot.
Take this here by Micro Center:
http://www.microcenter.com/product/424285/G412_Desktop_Computer
Same i7, 2gb hard drive, 120 ssd, bluray player, comes with windows 7 pro installed and an extra copy of windows 8 pro (updating to 8.1 is free) 16gb RAM and a GTX 760. The only thing I'd recommend is swapping out the PSU since most pre builts skimp on them and even then your saving ALOT. I only recommend this one because my buddy just got one and it was the same price as my build (that runs an i5 and doesn't have a bluray player) after tax.
Take this here by Micro Center:
http://www.microcenter.com/product/424285/G412_Desktop_Computer
Same i7, 2gb hard drive, 120 ssd, bluray player, comes with windows 7 pro installed and an extra copy of windows 8 pro (updating to 8.1 is free) 16gb RAM and a GTX 760. The only thing I'd recommend is swapping out the PSU since most pre builts skimp on them and even then your saving ALOT. I only recommend this one because my buddy just got one and it was the same price as my build (that runs an i5 and doesn't have a bluray player) after tax.