I can't afford to get a new Xbox 360 Arade or any of the newer Xboxs so should I buy it? Please give me what I can and can't do on it because I am clueless when it comes to Xbox. I don't care for games you buy on the store, I just want to go to a store, pick up some games and play them on it. Live would be nice also. Can you do that on the Xbox 360 Arcade? Price range too please! Help!