Thanks for the compliment on the wheels. I just got them about a month ago.
As for the autocross school. I found some information that breaks down the day's events:
http://forums.chicagovw.org/viewtopic.php?f=18&t=13260
I know that a lot of the information would probably be redundant to someone who has autocrossed before, but I figure if I learn even one new thing, it would be worth it. I also think I will get more positive seat time at this event than I would at a regular event. I also installed some springs about a month ago, so I have not tested the limits of my new suspension or tires yet, so I figured this would be a good learning event for myself. One of the other guys going ('91 Miata, SCCA prepped) has plenty of autocross experience, but he is still planning on coming with.
It is up to you if you want to go or not, so the invitation will stand. I also emailed MSCC and requested a rooster of everyone who signed up, to see if there is even any spots left.