With all due respect to everyone who's contributed to this thread - there is a lot of myth and misinformation being offered here as fact. While I am no expert, I have been through the process and I learned all I could about the disease before I chose surgery last year.
There are a lot of excellent internet resources on prostate cancer, amazingly, PelicanParts is not one of them.
Talk to your doctor. Talk to a second doctor. Talk to people who've had prostate cancer. Make an informed decision based upon facts.