My friend was originally selling me an evga gtx 580 for 200 bucks, in perfect working order and good shape, he now wants to sell me the gtx 580, an I7 960 3.2ghz without heatsink and an msi x58 motherboard (unsure of exact model)or 400 bucks even, all of which work perfect and all are used, is it a great deal should i get it for my gaming rig im on a budget and any heatsink fan recommendations?