I don't live in the States. I bought a new one (128MB, DVI, VIVO) for about 135USD. So you should go for the 100USD price range. If you have all the accersories then it's a plus. If you have the box it'll be even better.

When selling it on-line or wherever. Remember to state if you oc'ed it, ran it higher than default, modded it? That will help other people decide.