The intellipower is cheaper then black and same price as blue. And intellipower is faster than 7200rpm? I can hold off on the
CPU cooler and a 212 EVO. I found a 21.5" mointor for the same price as a 23" just the 21" comes with a webcam. I can switch out the 7770 for a $23-ish increase. 7850 it is. Anything else?
If the Intellipower is following the Caviar trend, then Green's architecture would be slower than the others since it's mostly bought for storage drive. Seeing as you don't plan on using an SSD, then the Green would be your primary drive.
I'd wait on the CPU cooler. The stock cooler will work just fine. You won't need to overclock for gaming anyways. I'd wait it out and buy an aftermarket cooler later. Just focus on getting the more important things like a decent CPU/GPU. Also, I wouldn't worry about getting a "gaming" keyboard and mouse. Any laser wired mouse and wired keyboard will get the job done. Invest your cash in the most important parts first.