Your PC is medium risk.
The combination of local and systemic treatment will give you the best chance of a good prognosis. Often hormone treatment is undertaken before during and after radiation.
Not everyone has severe side effects from hormone treatment, and there are ways to reduce the more severe potential side effects. Most men I know who have used hormones have not experienced major problems.
For more information on hormone treatment, the book by Dr Charles Myers on the subject is worthwhile reading.
A very good comprehensive book is "Prostate Cancer Prevention and Cure" by Dr Lee Nelson. Dr Nelson underwent radiation and hormone treatment as he considered his T2b PC agressive, and needed an agressive approach. His book covers diagnosis, stages, treatment options, lifestyle changes, diet supplements and exercise.
Other good places for information are:
www.yananow.net which has stories from men who have undertaken various treatments. See mentors experiences section.
www.protonbob.com has lots of details from men on proton treatment.
www.compassionateoncology.org has details on the use of hormones for 13 months as a sole treatment.
You will get lots of personal views. For T2b, I'd go to Loma Linda if possible, as suggested here previously, or undertake IMRT and hormone treatment for 13 months. Reason being that hormones could well improve the radiation result, and if going through hormone treatment for a few months, it seems more logical to continue for a longer treatment to give best chance of treating cancer cells which might well be circulating in the system or be present in other areas.