Hey Whylee. I was thinking about a 250 also, but I think the limit to those would really impede your riding, especially when you're used to so much power. I'd be alright with them in a school environment, but on a trackday, it would take a lot of shifting, and would inhibit some of the things you'd work on instead of riding a bike you may have to use 2-3 different gears otherwise.
Welcome to the forum, by the way.
*** Can I have access to, or could someone please edit, the initial post? It's killing me.
Really, I was under the impression that the smaller bike would actually let me concentrate more on techniqe. At least thats what others have been saying. I do see your point on trackdays, I would hate to get in others way because I know the little ninjas dont have the power to keep up with the big dogs.