It's a common misconception that you need an i7 and 16GB of RAM to game. All you need is an i5 and 8GB. I see that you're a serious multitasker, so I'd get an i7 and 16GB of RAM. But, you got 2400MHz RAM which makes no difference compared to 1600, and the i7 3960X is a beast, but it is very niche. I'd get an i7 3770K, 16GB of 1600 RAM, 2 670's in SLI, etc.