MUCH better PSU with totally stable V rails (especially for the money -- plus some bonus bling) and full aluminum housing (used to be Allied AL-B500-E, with absolutely top-reviews everywhere):
http://www.newegg.com/Product/Product.asp?Item=N82E16817154015
moboard: Good, but ASUS would be better
Geil, Mushkin, Corsair would be a good choice on RAM, although OCZ is fine.
Proc': good
Vid: You really should do a Radeon 9600XT / Geforce 6600GT or better. Less won't hold up much longer (games)
Drive: good -- fairly cool and very quiet running. Maxtor 16 MB cache new 350 GB+ models are better bang for buck.
DVD: excellent. Very fast and 2nd only to Plextor's comperable model. Dual-layer media is still so expensive for what it's worth, by the time you really need it, the media will be cheap too. DVD Shrink makes excellent use of single-layer media //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
Don't forget a case. My favorite one so far and my main machine runs the Antec P-160, but there are a ton out there, in that level.