500$ is the starting point, it also depends where you are.....
Ebay: http://myworld.ebay.com/halodude23/
Heatware: http://www.heatware.com/eval.php?id=80042
ASUS SABERTOOTH 990FX AM3+:140$
CORSAIR XMS3 8GB DDR3 1600 (PC3 12800)-30$
Acer p191w 19" Monitor-80$ Shipped CONUS
Ebay: http://myworld.ebay.com/halodude23/
Heatware: http://www.heatware.com/eval.php?id=80042
ASUS SABERTOOTH 990FX AM3+:140$
CORSAIR XMS3 8GB DDR3 1600 (PC3 12800)-30$
Acer p191w 19" Monitor-80$ Shipped CONUS