Our last trip that way we stayed at the Empress Casino. It is nice enough, but not close in. About 45 minute hike to downtown with no traffic. If I was just dropping in for a couple of days I would try Jerry's suggestion of the McCormick Center and just drycamp. Chicago is a tough place to find something close in.............I also liked the idea of ZipDee. May be a good option. Good luck. Hope to see you at the Fat Beagle.