Well, I just ordered all my new comp stuff this week, and here's what i went with:
CPU =
AMD Athlon 64 X2 Dual-Core
MB =
Asus A8N-SLI Premium
Vid Card =
XFX GeForce 7800 GT 256MB DDR3 PCI-E
PSU =
Antec TP-II 550 Watt ATX12V v2.0 PSU
I do a lot of multi-tasking, so i went with the dual core CPU.