So I already have one but am getting another one for downstairs where the kids hang out. Question is - what is the best way to set it up? Should I use my Live ID for the new one or set up an XBL account under one of the kids ID's? Can I buy one game and play it on both consoles at the same time if I set them both under my XBL id? I'm confused here and MS Forums are of no help. Just wondering if anyone here has more than one and how it's setup.