I plan on using an intel core i7 930 for the processor and Windows 7 X64 OS. If you had to choose between these 2 rams and cost and looks wasn't a factor, which would you choose any why? Just curious what others think about this. (Please don't tell me to get a different kind of ram, I know there are better out there, I just wanted an opinion on these 2 please ).
The system will mainly be used for gaming, but some video editing and light 3D rendering will be done too.
Also that Gskill memory you posted has a Cas Latency of 9. You want to try and get 6 or 7 because that affects the performance and speed more than whether it's 1333, 1600, or 2000. The lower the Cas Latency the better.
Since all current games/apps will run fine on 6GB,i would recommend it, it also has lower timings.
To add to this...
If the system is being built for heavy CS5, CAD or HD Video Editing/Rendering type activities, you will benefit more with having more RAM than the lower latency. Otherwise, there is no reason or benefit in running more than 6GB of RAM.