I sell motorcycles including supersport machines for a living. I personally am now riding an HD after 5 years of sport riding. My last bike was the one you first showed, gsxr1000k5 LE. It was stupid fast, clicking 100mph in first gear on a six speed tranny. Any questions feel free to ask. The new gsxr600 is a very comfortable technologically advanced machine, I highly recommend it. The honda 600rr would be the most rider friendly though, get onit and learn the easiest for "supersport". Sucks you aren't closer or you could come check out my shop, its the largest japanese dealer in the tristate area! you buy a bike from me so I can buy another fish! LOL. I'll post pics of me and my 1000 later