if you aint a bit "skeered" then you are riding like a girl... What I just learned on my first track day is that sensory overload is always present the first few sessions.. Speed is not the issue.. getting used to the environment is.. by the end of my third session, I was working more on riding technique as the track layout was becoming more embedded in my memory..
my the end of my last session, I was using the throttle to use the full width of the track.. (now you start to feel like you are going faster)
Just go out and do it.. as far as the 750 goes? yea, I think that would be a good move if you decide to keep running.. Although very capable, the Busa is pretty heavy and hard on tires compared to the lighter bikes.. (not to mention new rider is going to be harder on tires I bet)
you are going to love it I bet
I had a girl wearing pink blow by me like I was parked on the Gap a few weeks ago