1gig is overboard imho so long as you leave slots open with 512. Because ram prices are high as hell right nowand memory is a VERY easy upgrade so long as he has a slot open for it.
Sparkle power supplies are very high quality.
A sparkle 300watt has better measures then some of the cheap 430/450watts I've seen. (If I remember I saw a powmax/leadman 430watt with something like 10.0A on 3.3)
I've got an older sparkle 300watt (175 on 3.3 + 5), and It's Dead on at every voltage except the 12's (which I've NEVER seen even close to accurate on any power supply, they always seem high) so they are quality Power supplies. I can't read the measures on the Sparkle 400watt at newegg. I'd check around to be sure they are better than the 350watt version newegg sells,(because they are different lines so there will be variance.)
Buy SAMSUNG, not Geil memory
Speakers look ok, but if I were spending that much, I'd get better speakers.
Nice hard disk
Nice monitor
Heatsink looks fine
I'd get the Smartfan 2 instead of the YS-tech, it has a broader range.
Video Card looks sweet
Why so much AS3?
Gonna use onboard sound?