there were no harsh shifts or anything like that, it was shifting great.
I took it into a transmission shop that and they said that the problem was a plate around one of the bearings was damaged and the buzz was the car finding the gear. The estimate was $1000 - $1500 CAD. Talking with friends, we realized that was about the cost of a rebuilt tranny so I took it to a few other mechanics, one being my family'* that we always go to. They all said it was not the tranny - it was an electrical noise and it'* nothing to worry about.
So apperantly, the tranny guy was trying to screw me, and the car'* fine.