Bob,
Personally, I'd give yourself some more time before deciding on a treatment option (AS is a treatment option, too). You're too near the initial emotional shock of diagnosis and haven't had much time to research this disease as it applies to you individually. With your low scores you don't have to be in a rush.
I was your age when diagnosed and had low numbers like you. I waited 6 months before choosing prostatectomy. The wait helped give me a chance to research and study options and to get a little more emotionally distanced from my initial feelings upon diagnosis. I was much more confident of my decision by waiting and taking the time to study prostate cancer further.
Of course it's your decision, but I want to provide you with another perspective from someone who was in the same boat as you are.