Last year I called them and asked, and was told sorry, no. You can pay for your room and room charges with a personal check a tthe end of your stay though. At one point Suntrust operated a bank (more like a service desk) in the MK and would cash a check for up to $50, but they aren't there anymore, and now that Bank One is the new provider of choice for banking services, I don't think they are offering that service.
Anne