arcteryx, I have to chime in, even though I was radiosurgery instead of microsurgery.
I think we all question ourselves and decisions we make in our lives that can be life altering in any way (physical, emotional, etc). So many responses here that are on the money. We do what is best for us at that time. You have become so well versed on options, you've asked terrific questions, you have shared info. Have faith in knowing that you have decided to do what is best for you and your situation. Have faith in knowing you are a very well-informed patient and have done your research. Have faith in your dr's and their skills and knowledge. Have faith that you are doing what is best for you.
I know this next week is going to be a difficult/stressful one. Please remember to take a long, deep breath each day to help bring you some inner peace. Take time for you (ie: a walk, a cup of tea, a bubble bath, etc) so you can be with your thoughts and that wonderful, deep breath. I have faith all will be fine with your procedure.... my hope is that you find that strength in knowing you are doing what is best for you.
MAJOR HUGGLES!!!!
Phyl