buy a aftermarket cooler. It will cost you anything between 25 to 80usd depends how flashy you want it. Better than spending 200-300usd on a chip that will be outperformed by your cpu if it was running at the same clock. Its easy to overclock the I7 and there are lots of wonderful guides out there. But get your temps down first with a aftermarket cooler. Once you get the hang of it you will love it. We all had to learn and started from scratch. Like driving a car once your into it its simple basically. It will save you a lot of money
For the ram. There was shown there's a performance increase from 1gb to 2x2gb.
Don't buy a 2gb stick. Buy a 3x2gb kit rather. Buying a separate stick will mean it still won't be running triple channel. You'll need tl buy a kit
Op get the 212 hyper or the zalman performa cooler
Why are we talking about back plates the hyper comes with one. Why use the stock one when your going to remove the stock cooler anyway? surely its not that hard to push pins through a few holes?
triple channel ram the sticks need to be the same. Same as with dual channel. If its not the same it won't run in triple channel mode.
A projector?at higher resolutions the newer cards perform better. Throw in another 2 x 580s and get a projector.