I am a new rider as well, and I am prolly buying the F4i unless the 02 R6 comes FI as well. Anyway, I have only been riding for 3 weeks of and on on my friends' Kawi 250 and a 94 CBR600F2. At first I was intimidated with the CBR, but after a while of riding it in the parking lot and then on the streets I got a lot of confidence. Now, I am buying the F4i (may be) around October when the 02 are coming out. So, I agree with HondaNut! A 250 feels pretty fast for some1 who has never been on a bike. After a while then it feels slow. That's when I moved up with my friends 600cc. However, it is duable to learn on a 600. My friend did it on his 01 R6, but I would recommend either buying a used one or borrowing your friends if he has one (or if he lets u ride it) so you can get and idea how powerful a 600 cc is. Once you go through the MSF school, you will get an idea about the power and what you can handle.