these Michigan events are within a few hours of you.....time for roadtrips <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=':D'> .
http://www.furrin.org , local/regional autocross group
http://www.wmr-scca.org , go to Solo II link, regional autocross group. see especially the Western Michigan University events in Kalamazoo.....excellent events!! we often see people from Chicago there.
http://www.tirerack.com , they host a number of events throughout season, iirc they have a listing on their site. if not go to scca.org and find South Bend region address for listings.
i'm sure tnord will post later for his region north of you. hope this helps <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=':D'>