jaybar,
I am into HPDE's, have not done in a couple of years down here, but want to head over to Sebring after the holidays some time. I just redid my 2001 Z with the Pfadt adjustable coilovers and sway bars and am dying to test them out.
Chin Motorsports (
http://www.chinmotorsports.com/) does several events a year at Sebring, and I know there are events down at Homestead.
If you find a schedule of events, let me know, I will be interested in joining you for some hot laps...
Mark