£900ish is my budget. I plan on sticking with my current case which is a CoolerMaster Mystique. I will also keep my current xfi extreme gamer sound card and dvd/cd drives etc. I have already purchased a new hard drive in preperation for the build which is a 1tb WD Caviar Black. Have been trying to put all the other components together that I need at the £900 budget and have come up with the following but should I buy or can you help me choose smarter? Also, as the build will coincide with release of windows 7 should I wait nearer that time to purchase components?:
