I'm sure some of you are aware, but this looks tasty IMO.
http://www.pimpyourbike.it/ (http://www.pimpyourbike.it/)
Winter mods for those with time and money? [moto] 8)
I'd attach a file if I knew how, but I got a PDF today from them with the prices on it. Lets just say you'll have 5500 us in the frame and swingarm alone :)
Was seriously looking at building one until I found that. Prolly just going to go the cheap route and pick up a R6 or similar I4 for 3-5K to learn the ropes on the track.
My local shop is building two of these.
I think it looks like a pretty cool track bike.