Hi Richard,
I wonder whether your problem might actually be too much information, too many choices and too much help from well meaning guys like me chipping in with our own thoughts?
You say you feel '...fortunate that the Rotary Club offered a mass screening for PC...?'
Presumablly if that hadn't offerred mass screening you would be getting on with enjoying your life none the wiser?
Most men in there 60's have prostate cancer and most don't even know it.
Some of us do get symptoms, and are considered 'lucky' because we can get early treatment, that treatment may include the bonuses of impotence and incontinence! However as we are often reminded other less lucky guys never get any symptoms, or at least not untill it is way too late for any currative treatment.
Hormone Therapy is routinely given with radiotherapy for guys with higher Gleason grades, (look up neo-adjuvant and adjuvant hormone therapy).
If your doctors are telling you that it isn't really necessary, then you might wonder why not? If you don't need adjuvant HT then it might be worth asking whether the brachytherapy is really necessary?
At Gleason 7, you might think it is worth giving the watchful waiting option a go, for after all that will guarantee you no side effects at all in the short term.
I know a guy like you, who was considered 'lucky' to have his cancer detected at a mass screening event. He had treatment which was considered successful and 'saved his life'. But as time has gone by, and he has learned more about PCa, he realises that he paid a high price in terms of his potency and continence, to save him from what was statistically a rather low risk of premature death.
So take your time and don't be rushed.
:)
Dave