Thanks for the post Fortyodd, I think that it is fantastic that you bring into the open, a subject clouded in ignorance and general embarrasment, and its great to hear that you are progressing well.
The current message is to get to the doc as soon as you notice any urinary symptoms, and get checked out.
I've got to throw in a word of warning re: the PSA test- it's just not that reliable at picking out what we hope it would- the science isn't that brilliant, so , as far as I'm aware, the use of the test alone as a "screening" tool is limited.