Save the money on the sound card, both those mobos have AFAIK very good sound, on par with Audigy 1 cards. Put that money toward the video card. For now, IMO you basically have 4 choices as far as video goes:
1) Low End: ATI 8500 ~$75
2) Low Mid-End: Nvidia Ti4200 ~ $120
3) High Mid-End: ATI 9500Pro ~$160
4) High End: 9700Pro ~ $275
*I won't mention the 5800 or 9800 as they are a bit unreasonable.
Option 2 is faster than 1. 3 is faster than 2 (especially with AA/AF). 4 is king of the bunch.
As far as the mobo, CPU, and RAM. Get an Asus/Abit rev. 2 board, a 2100+ T-bred B (w/ a good HS, like the SLK-800), and 2 sticks of 512MB PC3200 RAM (Samsung, Corsair, Kingston HyperX, TwinMOS are all good). Then OC that badboy. These boards have made 200FSB easily.
For the HD, 80GB WD drives go for pretty cheap nowadays.
Go to Newegg.com, excaliberpc.com, svc.com and run some price checks. You may be surprised.