OK so my service is up tommorow and im going to probably buy a phone from ebay or MPW.com. i want to know if their is a web site to locate the 850mHz towers? If not do any of you know if Long Island has 850MhZ towers? Do you think its worth going for a quad band phone b/c i MIGHT get better service if t-mo has roaming agreements w/ cingular in the future? i want the D500, but that doesnt have 850mhz, and i want to get the best service possible...thanks