Re: my setup
Yeah, that's a nice PC, I would maybe upgrade that PSU, 500 watts might not cut it for a system that's that high end, but the included one is pretty decent. Other than that, you have a sweet system. Buy some case lights or something!!
If you really HAD to upgrade something, I'd say trade that DDR2 800 for some DDR2 1066. That would be smokin'. Also, I guess you could get the 8800 GTX graphics card, but I don't think you really need that fast of a graphics card right now, I would at least wait until ATI comes out with their new R600 DirectX 10 core.
C2D E6600 | 4GB DDR2-800 | 9800GTX+ | Asus P5B-E | 150GB Raptor | 320GB 7200.10 | 750W Xigmatek PSU