Hi! My husband and I are going to be visiting Chicago for the first time in a couple weeks during the Blues Festival. We will be staying for 4 days in the downtown area (Cass Hotel- 640 N. Wabash). We are coming from Philadelphia, so we are not strangers to good indigenous food. We're looking for places for the best deep dish pizza, Italian beef sandwiches, and hot dogs (and anything else associated with Chicago that I may have left out). Also, I wanted to know if there are any good special-occasion restaurants relatively close to where we're staying that won't break the bank (entrees around $20) and fun as well. We will be celebrating our anniversary while we're there. Another q: Billy Goat Tavern - worth a visit? Thanks in advance!