Do it. Youll love it. I ragged my Fz6 fazer around donington 3 times this last year. Prior to that, I did the Ron Haslam Race school twice. Price varies for trackdays through the year. Less expensive in spring/early summer/autumn, evening sessions tend to be summer nights only, and youll probably get only 3 sessions in. A full trackday a\t Donny is 7 sessions, and belive me youll be knackered. At one day, i decided to miss the last session cos I could barely shove the bike of its stand. I only do the Road Bike Only days, to avoid the racers etc on slicks/race bikes. No Limits is well organised with marshalls/medics.