Taking prices from memory
Athlon X2 4400+ ~ $600
Asus A8N Deluxe ~ $140
2Gb Dual Channel Ram ~ $300
4 x 320WD SATA-150 Drives ~ 4x $130
500W PSU ~ $70
2xPlextor 8XDVD burner ~ $250
decent PCI-E graphics card ~ $70
Case - ~$100
Total < $2000
X2's run much cooler than Intel's
Bok