Building A gaming Rig Need help

[FragnaticDeath]

OK guys well what I care mostly is being to play Diablo 3, Dota 2, Starcraft 2 at max settings.

I was thinking of getting this build till now:

Mobo: Asrock Z68 Extreme4 Gen3 Intel Z68 (Socket 1155) DDR3 Motherboard
CPU : i5 2500k
Ram: I would like around 6-8 gb. Should i go for tri-channel or dual-channel x2?
GPU: I really don't know something bang for the buck
PSU: Corsair HX 850W ATX Modular ( feel free to say opinions about psu )
CPU cooler: ?

No hardisk, keyboard, monitor, mouse. Just a tower without optical and hardisk drives.
My budget is somewhere around 600-800.

 

[FragnaticDeath]

Hey guys sorry for not including all the details! No hardisk(already have an 120gb SSD , monitor, keyboard, mouse.

Will need a CPU cooler as well. It is basically spending 600-800 pounds on a Tower nothing more without optical drives and hardisk

 

[FragnaticDeath]

Guys how much better is the gtx570 in tessalation than the 560ti?

Made some adjustments! will be going for the corsair hx 850 just because i really like corsairs psu. Will it be able to pull through with two 570 Gtxin sli?

 

[FragnaticDeath]

yup it will be fine.

thanks mp! you have been great help