Hi Flyer! I am by no means an expert, but am four weeks post-surgery and am having Gamma Knife in a few weeks from now. I had several dr's tell me surgery alone was an option, but not Gamma Knife alone....my understanding is that with boith together, hopefully hearing, facial nerve, etc. can be perserved a little better than surgery alone. I was also told that anything under 3 cm can be treated using radiosurgery (like Gamma Knife) alone, so it sounds like MAYBE that could apply to you.
The one comment I wanted to make was that it does not sound like you are happy or comfortable with the dr. you consulted. Believe me, you will have a lot of interaction with this person, and in my opinion, you should at least respect, if not actaully like this person! I was very happy to have consulted with more than one neurosurgeon and hope you can do the same.
The other advice I might give is to spend a little time on these boards and try to read some of the comments others have posted, it can be very helpful.
Whatever you decide as far as treatment, best of luck to you!!
p.s. If you hadn't said English was your second language, I never would have guessed from your post - you write better than many native speakers do!!