Coming from an F2 you might appreciate a Kawasaki N1K, a good engine with similar power to a "V", not the same, but similar. Easy to ride, and not to bad on comfort either. Keeping the CBR, you might even want to consider a "naked bike", Tuono, Z1000, Street/Speed Triple, Super Duke (awesome bike by the way)etc., and obviously being a Honda fan, the CB1000R would certainly be a great choice. Of course just my opinion, best of luck with your search.