Patients will have up to 8 wafers implanted into the tumor resection cavity (depending upon its size) after maximal tumor resection. Between Study Days 14 and 45 all patients will begin a standard course of post-operative limited field radiation therapy to the tumor site and a surrounding margin. Temozolomide will be administered concomitantly with radiation at a daily dose of 75 mg/m2 daily (7 days/week) and then beginning no later than 30 days following completion of radiation therapy on a 75 mg/m2 daily dose given 21 days out of each month for a total of up to 18 cycles.