I'm upgrading my PC with probably a Phenom Quad + MB. I'll buy these new as I want no problems with the MB especially. However, I've no issue with buying GPU's on the used market as I've purchased almost 1/2 dozen to date without a hitch.
Bottom line, what's the best used card out there right now for around a hundred bucks? I'm not looking for anything much higher than 19x12 and probably will settle in lower than that.
Recent cards are to expensive on the used market. They don't come with warranty and I have seen them go over retail value on ebay. If you know what you want you will eventually get it but 90% of the cards on ebay go for a to high a price.