Nice build list, I would second the opinion on the PC Power&cooling 1KW supply over the enermax having owned both the PC power&cooling one seems to put out more currant at higher efficiency (lower psu temps). And would second the opinion to replace the 500GB WD drive w/ a 750GB Seagate.

If you have any left-over money the HP LP3065 30" LCD monitor is sweet (best purchase I made in the past 6 months. )