I just bought a new macbook. should be here any day now. I have a few questions. should I sign up for the mobile me? is it free? does it come with the notebook? when i turn it on, should i let the battery life thats there run out, then give it a full charge? whats a program like Nero for windows, that does the same stuff for mac? does it come with software to burn downloaded movies on to discs? does it have a dvd ripper?