Hi John,
As per Ray's reply, it isn't so bad having RT, I am still here 7 years after initial diagnosis, 5 1/2 years after RT.
Better still, (because I now have a rising PSA again) I am in the middle of tests to see if I make the grade for HDR brachytherapy, as post EBRT salvage, and who knows where the science will be in another few years, so stick with EBRT as your 'first blast' and you will still be able to have some more cooking if your tumour springs back to life!
:)
Dave