Mind telling me which is better mainly between the 1st two GPUs I linked. I've been constantly influenced by my m8s to buy ICEQ b/c they don't mess around with their heatsinks and the reason I'm questioning the MSI over the ICEQ is b/c I can't wrap my head around the mem clock it handles. It was also listed in the newegg review that it handles autocad quite well (+1).
World of Tanks
Large Video Rendering/Processing
AMD Phenom II X4 955
G.SKILL Ripjaws X Series 8GB F3-10666CL9D-8GBXL
Corsair CX430 V2
Plz comment on the GPUs or if there is anything you would suggest changing in my new build. Thx
An HD6670 is only $5 more than the HD6570 you linked and is significantly better but as the others said you should really get an HD6770. There are some as low as $90 after rebate on Newegg at the moment. The IceQ is a nice cooler but the cards you are looking at do not use much power/give off much heat so the cooler should be a very secondary concern compared to getting the best GPU for the money you have to spend.
As for the rest of the components I would recommend getting 2 x 4gb of DDR3 rather than one 8gb so you can use it in dual channel mode. Switching to an AM3+ motherboard so you can upgrade to the latest AMD processors in the future if you want to would be a wise decision as well.