Since I've never phone/carrier hopped.. maybe someone can give some advice on this.. If I have 4 months left on my 2 year contract with T Mobile, how do I handle the early termination fee thing.. do I call them and do it before I go to ATT/Best Buy ?.. or do you get the phone and have the number transfered and then get hit after by T Mobile ?.. it's not a problem either way, just curious of what is better.