Interesting that they are going straight to biopsy. In my case I first had a simple echo to determine the prostate size and then an MRI to look for lesions which then guided the biopsy.
However, the biopsy isn't pleasant but not that bad. You get gowned up and the surgeon does a quick finger check and then you lie on your side. They push a well lubricated tube up your rectum and then give you a couple of painkiller injections. After a minute or so you can feel them fire a device into the prostate - it's uncomfortable as they fire it each time but not major pain - in my case they did 13 of them. They then clean you up and you walk back to get dressed - I drove home afterwards.
I went to lie down on the bed for a couple of hours when i got home with a couple of paracetamol and I was fine. For your next dozen or so ejaculations you will have bloody semen which can freak you out a bit and you may have small amounts of blood in your stools and urine but that's perfectly normal.
From the histology results they will give you a Gleason score which looks something like 3+4=7 which indicates the size and scope of the cancer lesion(s). From that point you can decide one what steps to take next.
Hope that helps
Steve