Check out Southwest Rides. A lot of the member there do the track day thing.
Here's a couple of the most recent threads re Firebird:
Thanks. That seems to be a different group putting those track days on. Maybe that one is better? I'm going to try to get my shit together to do the track day at Inde on 10/23. Seem like the most bang for the buck and the track is closer and appears to get more positive reviews.