Motherboards
Asus HP Compaq P4G533-LA REV. 1.01 Motherboard With I/O Shield
$20
Available 
Dell Vostro 230 JL1117 Rev: A01 Motherboard
$40
Available
HP Compaq 6005 Pro REV. 0S Motherboard with Heatsink
$20
Available
HP Compaq dc5850 Small Form Factor MS-7500 VER: 1 Motherboard
$30
Available