Re: Just making sure :)
is it compatible? sure.
would i recommend any of the components? no.
the power supply is not from a reputable power supply company. stick with seasonic, antec, and corsair. 850 watts is much more than the computer needs. 650 watts is a good place to be for a gaming build.
you have twice as much ram as you need. for a gaming build, 2 sticks of 4 gb ram, (8 Gb total) is all that anyone will need. 1600 speed ram, not the 1333 speed that you have listed, is at a good price point.
the hard drive that you listed is a green eco version. not the fastest and is really only meant for storing data, not running programs. from the same company, get a black version.
the gpu that you have listed is probable overpriced. also, i would recommend one that has a different style cooler on it.
the amd cpu and mobo... for a gaming build, you will not use 6 out of 8 of those cores that you are buying. intel has faster cores for the 2 at most at a time that you will be using.
Intel Core i5-2500K
ASUS P8Z68-V LE LGA 1155 Intel Z68
1Tb Samsung Spinpoint F3
1Tb WD Caviar Green
2Tb WD Caviar Green
8gb DDR3 Corsair Vengeance 1600
Sapphire Radeon 6870