building my system again

[ABCC]

hi, i currently have a P4 2.0A 1G rambus, P4t-e asus motherboard, Nvidia Gefroce 5600 FX ,

Im looking to upgrade this with in the next 2 months. I love building and chosing all my parts to coustom build my PC.

On the video card , i want the Radeon All In Wonder x800 XT 256 PCI express

I know i want a Raid mother board so i may have more than 1 hard drives, but i havent decided or looked in into which one i would like yet.

Im still alittle confused on what CPU to get. P4 3.4 or Athlon-64 3500

The athlon has for 64-bit, but it shows it running as a 2.2 ghz, and the pentium as a 3.4 ghz and both run for about the same price $250

anyone know which cpu you would go for ?? Thanks