1x Quadro FX 380 256MB GDDR3 -$20 Pickup
1x Quadro NVS 450 512MB Passively cooled $30 Pickup
1x AMD Athlon 64 X2 5000+ 2.6Ghz $15 Pickup
The FX 380 has two DVI ports, the NVS 450 has 4 display ports so would make a great cheap GPU for multi display.
All components used.
I live in Auckland Central and am off work this week...