Out of all of the decisions that I've had to make concerning my PCa, the best was to find (and join) this site. You'll find many words of encouragement and advice here.
As far as your decision on treatment, listen to all of the options and do your own research. Don't rush into making a decision (but don't wait too long!!!).
When I was first diagnosed, my initial thought was "no way" regarding surgery, and I was leaning towards radiation. However, as I did my research and talking to various doctors, I finally decided on robotic surgery.
I had my surgery in Jan 2008 and have not regretted my decision.
You will need to do the same thing..........do your research, talk to people, and make the decision that you are comfortable with.
It truly is a personal decision that only you can make.
Good luck to you,