First Ever Gaming Build $700-800 Need Advice!!!

Hello all, this will be my first ever attempt at building my own computer. I will be using this computer primarily for gaming and the occasional internet surfing, otherwise i will have my laptop for other activities. I guess first is this build even compatible. Second how will it be for playing skyrim and playing the elder scrolls online in the future. I've already bought the cpu so for the rest of the components my budget is around $700-800.

CPU: Intel i5-2500k
CPU: Cooler: Cooler Master Hyper 212 Plus
http://www.newegg.com/Product/Prod [...] 38566&SID=
MOBO: Asus P8Z77-V
http://www.microcenter.com/product [...] otherboard
RAM: Crucial Ballistix Sport 8gb (2x4gb)
http://www.microcenter.com/product [...] y_Modules)
Hard Drive: Toshiba 1TB 3.5''
http://www.microcenter.com/product [...] A100_-_OEM
GPU: Sapphire Radeon HD 7950 3gb
http://www.newegg.com/Product/Prod [...] 38566&SID=
Case: Thermaltake Commander MS/I Snow Edition
http://www.microcenter.com/product [...] _Mid-Tower
PS: Corsair CX Series CX500M 500 W or Antec Basiq Plus 550W
http://www.microcenter.com/product [...] wer_Supply
http://www.amazon.com/dp/B0017KE3DM/?tag=pcpapi-20
Extra fans: 2x Coolmax CMF-1225-BL 120mm (Not sure if necessary)
http://www.microcenter.com/product [...] Fan_-_Blue

Any advice is appreciated. Thanks