I'm on a grandfathered data plan called T-Zone or TMobileWeb. I pay $6/mo. and I'm NOT looking into upgrading to another more expensive plan. My question is, what is the best Samsung smartphone that I can get without having to change my data plan? It can be an old or current phone. I'm looking for a touchscreen though as my old T-Mobile Dash 3G's keypad is getting old for me. I'm also looking for one with an above average camera and web-browser. Any ideas?