My upcoming Rig

I've been pushing my 4-year old PC to it's final limits for so long that one of my Hard Disks just gave up on me, which screwed up my entire BIOS for some reason, so I was forced to re-install WinXP, which in turn made the OS stop updating itself.
I emailed Microsoft Tech support, and they responded-surprisingly-with the same troubleshooting tips as the ones posted on Microsoft's Tech Support website. No dice there either.

So decided to make the boldest move yet: Build another system, but this time, it'll be an AMD-based machine.

Here are the specs I'm speculating;

-PROCESSOR: AMD Athlon 64 x2 6000+, 2.8Ghz
-MOTHERBOARD: Asus A8N-SLI Deluxe
-MEMORY: x4 Kingston or Crucial, DDR2-800-PC2-6400: 4GB total RAM
-GRAPHICS CARD: nVIdia Geforce 7950 GX2
-HDD: Maxtor 300GB, SATA, 16MB cache (x2)
-SOUND: Creative Sound Blaster Audigy2 ZS
-POWER SUPPLY: Silverstone 650W/750W or equivalent
-OS: Windows Vista Home Premium
- CPU COOLING: Fan; Zalman CNPS 9500 AMZ or equivalent
-SYSTEM COOLING: undecided

Geeks, comments welcome! :)