 In some other cancers such as colon cancer and lung cancer, combining bevacizumab with standard chemotherapy shrinks tumors in a greater proportion of patients and makes patients live longer than using standard chemotherapy alone. This has never been tested in urothelial cancer and we do not know if bevacizumab will have the same effects in this disease. The purpose of this study is to find out what effects, good andor bad, the combination of gemcitabine, carboplatin, and bevacizumab has on you and your cancer. 