My girlfriend and I are taking a 2 week trip around the south east in late sept/early October. Planning half camping, half motels. We are non-US, and as such would end up paying expensive roaming rates for any cellphone calls we make. We may need to make enough calls (booking ahead for accom, arranging to meet up with friends etc.) to warrant getting a cheap sim card. Any suggestions for a suitably cheap pay-as-you-go type sim for a cellphone for a short stay?