Best $1200 Upgradeable Gaming PC

Hello, I have been wanting a new computer as my old laptop dies. I enjoy gaming but have been limited to playing on friends consoles, or playing on extremely low settings with games newer than 3 years ago (Other than dota 2, but it is still pretty bad). I will mainly use this computer for Dota 2, BFBC2, Skyrim and TES Online (Possibly), WoW, and maybe crysis (Played through Crysis 2 on Xbox and loved it). Other than those games it will just be a general purpose machine. I want it to be highly upgradeable, overclocking is definitely an option. Preferred brands would be Corsair, Asus, and Intel, although anything without the god awful blue color scheme (Glory to the Horde and Dire) and brown pcb. This it my current thought for it, this will also be my first build.

Mobo: Asus Maximus V Gene: http://goo.gl/KWEqZ 199.99
Case: Fractal Design R4 Black Pearl: http://goo.gl/4m4Ha 119.99
OS: Windows 7 HP : http://goo.gl/PGCYB 91.17
GPU: XFX 7870Ghz Edition Double D: http://goo.gl/5WNBb 229.99
PSU: Corsair AX750: http://goo.gl/zZQnW 139.99
RAM: G.SKILL Ripjaws 8GB 1600mhz: http://goo.gl/F5di 52.99 (Why has RAM gone up a few dollar over the past month?)
CPU: Intel Core i5 3570k: http://goo.gl/RALrx 229.99
CPU Cooler: Cooler Master Hyper 212Plus: http://goo.gl/mByH 23.99
SSD: Kingston HyperX 120GB: http://goo.gl/RMJLH 129.99
I have a 500GB external HDD for my main storage.
Total, ~1218

Any suggestions, the psu doesn't have to be modular like the AX750, I just like a clean looking computer, I could settle for a different case, and the mobo is mainly for the extra features.