New AMD Phenom II 955 Build, help?

Hello, I plan on building a new AMD rig thats descent for gaming and movies. Ive been doing quite a bit of research and I do plan on overclocking. I pretty much want a PC that will last me for the next couple years. I do plan on either crossfire or sli later on, but not as of now. So far I've got a couple of things on my list, but I need some opinions or recommendations. I am also trying to build this pc pretty much with the idea of "best bang for the buck".

Mobo's
GIGABYTE GA-890FXA-UD5 159.99
GIGABYTE GA-MA790FXT-UD5P
GIGABYTE GA-MA790X-UD4P 109.99
ASUS M4A79T Deluxe 169.99
ASUS Crosshair III Formula 145.15
MSI 790FX-GD70 AM3 AMD 167.99

RAM
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 97.99
OCZ AMD Black Edition 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 100.99

PSU
CORSAIR CMPSU-750TX 750W ATX12V / EPS12V SLI Ready CrossFire Ready 109.99

CPU Cooler
Zalman 9900 Heat Sink 65.99

ZALMAN CNPS 9700 NT 110mm 2 Ball Ultra Quiet CPU Cooler 59.99

CORSAIR Cooling Hydro Series CWCH50 79.99

GPU
SAPPHIRE Vapor-x Radeon Hd 4890 1GB 256-bit GDDR5 156.99

If anyone has recommendations, please let me know and explain. Thank you