Just be careful when you're in Chicago. Supposedly there is a random guy that likes to go around town shitting in peoples cars. Keep your windows up.
I might be going, a friend of mine has an extra ticket. As far as hotels, it depends on how far you want to be away from the venue, UIC pavillion. Most places with in a mile are gonna be around a 100 bucks or more per night. If you go out a little farther and dont mind distance, you can find cheaper places.