Currently I have the Samsung Exhibit 2 with T-Mobiles no contract plan. I was wondering if I can take the SIM card from that phone and put it in a Samsung Galaxy S2 phone and have it work. Also I was wondering if I get the Samsung Galaxy S2 off of amazon for cheaper will it work with my No Contract SIM card or do I have to look for a specific Samsung Galaxy S2? Obviously I'm not very tech savvy.