I've been looking at getting a GPU for a PC I have laying around, as I don't have my own PC (using family's, which has a GT 220 in it.) I have a budget of around $80 CAD right now. I'm looking on eBay to see if there's any good GPU's I could buy. I found a GTX 560 ti here but I've never bought a GPU off of ebay before, and I dont know if it's in good shape or if it's trustworthy. The seller has 11000 feedback score, but I just wanted clarification.