I am signed up to take the motorcycle safety course and hopefully get my endorsement in about 2 weeks... Been looking at the new ninjas...I've done a fair amount of research but I am curious what Exp. Riders think of my situation. No exp. On a motorcycle..5 10..180 lbs in decent shape..and have long interstate commutes to work(anywhere from 40-60 miles one way 5 days week) I am pretty mature and work in ems...250 cc or 650 cc?