Yep - keep the Monster for the street and buy a Japanese 600 for the track, you won't regret it. You can find some really good deals on track bikes at the CMRA and WERA websites.
Just resurrecting this thread to say I took your advice and got a 2002 R6 for the track and hope to have it ready in a month or so and get a few track days in this season =). I couldn't wait any longer to buy something with more tech!