Research components for my PC case BitFenix ​​Merc Beta

Hello Mr,
I would like to mount my computer with the case ​BitFenix Merc Beta which ​I already bought. I am not gifted in the field of the electronic components. I would like that you give me a stable list of ​components fast, stable, reliable, durable and cheaper that you tested so that. I can follow your example and mount my all alone ​computer. As you are gifted in ​the field of electronic ​maintenance and you know all the wheels of the ​trade.Thank you for your pleasant attention.

Windows 7 Pro, Intel I5 2500K, Coolermaster Hyper 212+, Asus P8Z68-V Pro/Gen3, Corsair XMS3 1333MHZ 4x4GB, Western Digital or Seagate 1TB 7200RPM 6.0 Gb/S, SeaSonic X Series X650 Gold.

what are you trying to do?
game photoshop?

and budget

We'd need to know what you're planning to use the computer for and how much you're willing to spend on it.