Hey, My roommate might be selling his Xbox360 and I am thinking about possibly buying it from him. It is the arcade version (256 mem card but no HD). One wireless controller. I was planning on buying one last year. The only reason I didn't was because he had one in the house when I moved in. What do you think a fair offer would be? I don't want to lowball him, but I also need to make it a decent deal compared to a new xbox because I would still have to go buy a HD for it eventually. Thanks for the help.