The first group (3-6 patients) on the study will receive the drug (Xeloda®) at 600mg/m² (level 1) and radiation. If the first group does well, the second group of patients on the study (3-6 patients) will receive 825 mg/m² (level 2) and radiation. If the second group does well, the third group will receive 1,000 mg/m² (level 3) and radiation. If the first dose level of 600mg/m² is NOT tolerated, we will reduce the dose to 500mg/m² and enroll another 3-6 patients at the lower dose.