We are planning a very last minute vacation and are considering Yellowstone. Problem is I've never been there so I'm totally lost on where we should fly into, where to stay, etc. I think that we're going to have to fly into somewhere some distance away because it's very expensive to fly into an airport closeby. (We're coming from Indiana.) Any ideas on airports to check into? Also, would you suggest having a "home base" - staying in the same place for the whole week - or moving to a different location for part of the time so that we can see/do other things? I'm not sure what there is to do, whether it will keep us busy for a week, and how close everything is to each other. Where would be a good central location to look into for lodging? We are a family of 3 (10 year old son). Any advice for a newbie would be appreciated.