Sorry for braking in sounding as a nerd but... are you all running 3dmark03 at a standard resolution or quality? I have an Athlon XP 2000, 512 RAM@333, and a MSI FX5900SP VTD-128 and run the benchmark at 2 different resolutions and got 2 different scores!!
1024x768, No AA, Bilinear : 4226...