We went with Alaskan Discovery RV Tours -- http://www.rvalaskatours.com/ last summer. we went on the 2nd tour and had the trip of a lifetime. we chose this caravan for numerous reasons... the wagonmaster is an Alaskan with a vast knowledge of Alaska, its history and culture, which he shares with the group over handheld 2-way radios as you travel along.This tour has an RV mechanic that travels with the group. (in Alaska, it's a long way between repair shops and breakdowns are not uncommon.) Also, this tour is very pet friendly with dog walkers on the staff to look after your dogs while you go on day trips... The tour does not end in the same place it started, so after the group splits up, you're free to go back and spend more ime in places that caught your interest. All in all, I would highly recommend, yes, expensive, but the whole itinerary is planned you. And it gave us a sense of security being in a group with an Alaskan guide traveling through the Last Frontier. Just remember gas and diesel are very expensive in Alaska and the Yukon, so don't forget to budget for it.