Wow, you are gonna get some hell for this post. No, you will not get bored. The zx6r is very powerful and serously fast in the right hands. I've had mine for about a year and it gets more fun everytime I ride because I am learning how to ride it better and faster. Trust me, the bike is faster than you are. Those that say they get bored with 600's are usually noobs that don't know how to ride anything but a straight line. If thats your game, then maybe you will lose the "oh shit" factor after awhile, but thats not what this bike is made for. I definetely wouldn't go with anything bigger if I were you. In fact, I think you should start out smaller. You said it yourself, your an adrenaline junkie. A bike this fast will end up killing you. I am an adrenaline junkie too, if I had started out on this bike, I would be dead by now. I think the guy you were talking to is a complete idiot and irresponsible for suggesting a bike like that to a beginner. BTW, if you haven't already, take the MSF course, please. If you do decide to go with a 600 for a first bike, be careful, wear all the proper gear, and have fun. Oh, and stay away from assholes on Suzuki 750's who tell you stupid shit (no offense to the 750, its a great bike).