[bikerfish1100]

Sean- sounds like the bike and seller were the right combo for you.
again- i'll toss in my $.02. what are you expecting to learn or discover by doing any riding of your bike before the class? my experience (8 years teaching MSF classes) is that most students gain little by having prior parking lot bike practice, unless that experience is substantial and observed/coached. you have a much greater likelihood of dropping the bike and scuffing plastic in that situation now, than you will after having taken the class. best thing you can do now- go ride a bicycle. seriously, it will work/reinforce that "balance thing" for you. (remember to keep your eyes up, and looking where you want to go). just itching to feel your bike? sit on it in the garage, make vroom vroom noises, and envision yourself having a great time on some fine country roads- but i would strongly advise fighting the temptation to take it out and play with it. little to gain, quite a bit to loose.
think about it- what could you gain by following thru with "I can't wait to practice with it a bit in the local high school parking lot just a block up the road from me. I won't be riding it on the open road at all until after my 3 day riding class next month, but maybe a bit on my private neighborhood's roads. " vs what might you loose?
hey, i could be totally wrong and am just suggesting undue excessive caution- but the odds, based on my experience as a RiderCoach, say that i am right.