Going off of Christoi's build (which is what i'd recommend as well)Quote from AwesomePants
Will this machine listed above run battlefield 3 at full settings 1080p
Will it Run minecraft shaders full settings with an hd texturepack at 720p?
Can you put a partlist together better then mine that suits these requirements?
-No, a computer 2x the price of yours can't run shaders (that computer being mine) because shaders are crap
I'd recommend not skimping on the peripherals, though. That keyboard and mouse are just flashier versions of $5 office periphs. I'd recommend a G500/G9x CoD Edition (way cheaper than the normal G9x) and Sidewinder X4. Drop the x4 to a cheapy keyboard if it's not within your budget. It wouldn't be much worse than the Gigabyte one you picked out.