I just got a biostar NF325-A7RT mobo for approx $50
SATA, USB 2.0 4 front + 4 rear, AGP, onboard LAN and audio, 5 PCI slots, socket 754
Just checked Newegg, 3 semprom processors from $78 - $100
Wouldn't be my choice, but there is an option. Just spend some time with research, it will...