Newbie here. I have 4 lines with AT+T: 2 not under contract and 2 still under contract although one is about to expire. I really don't need all these lines anymore, so I'm canceling 2 of them, preferably this week. I may keep the one line extra to stay on Family Talk (700 min). What is the best approach to get the best deal on an iPhone 4? Should I purchase it directly from the store and then go to AT+T and try to continue without a contract? Will I get any discounts in terms of hardware/data plan if I go to AT+T directly and tell them I'm going to Verizon instead? I'm not a big fan of playing one against the other so I need some tips I've never had an iPhone before, just an old "phone only" Nokia.