Basically I am finding myself become less and less involved in PC Gaming. It has been ages since I've played a game. I want to sell one of my systems and wondering how much I could sell it for. These are the specs as follows i3-3220 Asus P8H77-M LE 8GB DDR3 320GB Seagate barracuda and a 1TB Caviar Green GTX 660 2GB Gigabyte oc edition Gigabyte 550w psu Corsair 200R with 1x140mm 4x120mm System is fully built and cable managed, has barely even played a game. What's a good price?