Several times a year, VIR, a road race course in Virginia, i think, has lessons and a "test n tune" day. I know one of them is through the Tarheel Sports Car Club (
www.thscc.com). I think that day runs about 200 dollars, but you end up doing a hundred laps or so, most with an instructor, a few of your last laps without. Most sports car clubs do something similar. Check out your local SCCA club and i'm sure they can point you to a date or a place to do it. Track days are a lot of fun.
Nick