I am meeting my mother and three sisters in Chicago (none of us are from the area -it's just a central location) to celebrate one siter's 50th birthday and would like advice on a restaurant for celebrating her big day. I am not very familiar with Chicago but we are staying at a hotel on the Magnificent Mile and have been told that this is a great central location. We would like to stay in the neighborhood or within an easy cab ride. Looking for really good food (any cuisine but seafood) and pretty setting - it just can't be too trendy (in food or design) because mom is 72 and old-fashioned and one sister isn't comfortable in overly formal environment. Price not really an object - but, again, mom and one sis are a little out of their realm in the highest end establishments. Just want a place that will create a really good memory for all of us and want to treat my sis to a special night out. Thanks!