Post in this thread if you live in the midwestern USA or nearby areas of Canada, ideally roughly within a day's drive of Chicago.

EDIT: For anyone in this area, Penguicon may be a good location for a meetup. It's a mixed sci-fi/open-source/general-geekery convention in the Detroit area, and just might possibly have at least one guest that LW readers would be interested to meet. I probably won't be there this year, though.