with your budget I could threw in an Athlon 64 FX, which basically whoops my A64 3200+ pretty good...

I always feel you get ripped off when buying from such websites. don't know where you live but here in Sweden I know some pretty good dealers (my brother is in the comp. business), and they'll get it for me, reduce the amount of middle hands and the price becomes fairly reasonable.
Newegg has good prices, so i wouldn't worry, also I calculated the current dollar compared to my currency, and it's not as bad a I thought. The dollar has really plummeted lately here (going from a multiplier of 9 to 7...)
Let us know when you get the system running - if you have the time...I was like a child when I pushed the power button for the 1st time ;D