If you are assigned to Group 1, you will receive high-dose radiation treatment given over about 8 1/2 weeks. During this period, you will receive up to 42 treatments, 5 days per week with 2 days rest in between. There will be no treatment on weekends. This is the current standard schedule of treatment for prostate cancer patients. A radiation treatment planning session will be done before the actual radiation treatments. This planning session will be used to get images of your prostate and other pelvic organs to help plan the radiation fields. The planning session involves a computed tomography (CT) scan that takes about 40-45 minutes. During this time, about 3 special, permanent tattoo marks will be placed on your skin using ink. The tattoo marks will help with daily setup and positioning of the radiation fields. These marks are small and about the size of a freckle.