I have some Computer Parts for sale-
Intel Pentium 4 650 3.4ghz h/t Processor
Asus P5ND2-SLI Deluxe Motherboard
Thermaltake 680w PSU
Creative Sound Blaster Audigy2 ZS 7.1 Sound Card
Netgear 108mb/s wireless PCI card
Zalman Reserator 1 Plus liquid cooling system
Whether the CPU and/or mobo would out perform anything you had in mind.. I highly doubt it. Though, the mobo is pretty godly..both barely used (less then 5 times)...But anyways, it would be a cheap combo if you bought both
