Keys to the Kingdom is a GREAT tour...it's about 4-5 hours in length, and you stop halfway through for lunch at the Columbia Harbor House. I believe (don't count me on it though, because I paid the cast rate) that it is around $60-$70 per person on the tour, and is well worth the money. I've been on most of the tours there, and this was my favorite one...there's so much information in it...it's those little Disney details that they tell in there that most people normaly don't catch that make it so great. Also, Mickey's Magical Milestones is a good tour about the history of Mickey Mouse, and it's a little cheaper...I THINK it's around $35 a person, and only lasts around 3 hours. It's pretty neat as well! I don't know if having 19 people in your group will affect much at all...I don't think it will- I'd bet that your tour would just be your group though, and not any other guests...you may need to go through Grand Gatherings for that though (I have a group of 8 going over New Year's, and they suggested that we go through that for all of our reservations).
