my .02 If you have never riden street bikes is it quite a bit different than a dirt bike. you sit differnt, the powerband is different, etc. I bought a cheap used 600 (94FZR 600) in 98. I rode it for a year or so got board with the power. low 11sec bike but nothing brutal. then I bought a 98 gsxr-750. mid 10 sec bike but it was just a completely different animal. 14k redline, would just rip the front wheel off the ground in the roll on power band. the R1 is even a tad faster so it is quite a bit of bike. you will have to decide if you think you are mature enough to handle that bike right out of the gate or not. I always recomend buying a cheap one first. If you are going to do some thing jackass like drop it or lay it down it will most likely be in the first few months. you lose less money damaging a $3000 bike than a $6000+ bike. if you buy a 600 you will outgrow it most likely if you like speed but not everbody can hadle a low 10 to high 9 second bike without hurting themselves. I think I am the only avid bike rider I know (knock on wood) that has not jacked himself up at one time or another. If you like rpm's check out the gsx-r750's. they rev and are pretty sick speed wise. I like my 750 better than my cbr-900 just the way the power band hit. the r1's are nice though. I really like the new gsx-r1000's power wise but like the look of the r1 a bit better.