Last time I needed a phone, I went through the AT&T GoPhone plan. It's a pay as you go plan where you only pay for what you use and they have some resonable deals on some new and some refurb phones. I signed up, activated the new phone and account, pulled out the new sim card, put in my old one, and never looked back. It has work well for me ever since. I think I paid $19.99 shipped for everything.