My wife, 16 yr old daughter and I plan on taking Cosmos trip called from St Pauls' to St. Peters. Anyone been on that trip? What should I expect from an organized tour? I have never done one before. I understand the whirlwindness of them but waht are the pros and cons? How are the hotels on these things? Any advice on dinners in London, Paris, Florence, Venice, Rome? Cool spots to take a 16 yr old with expensive tastes but limited budget?