While I fully understand the desire to get to Disney World so that your kids can have a great time, it seems an utter shame to 'waste' four good days just getting there and missing out on a large section of the country just to get there. Meanwhile the kids, whom this trip is supposedly for, are cooped up for hours on end in the back of a car with at best (worst?) a few video games to keep them occupied.

Compare that to what they could see and do if you were to take one day extra on the drives down and back (by different routes each way): the St. Louis Zoo (free), the Land Between the Lakes (free), Chickamauga and Chattanooga National Military Park (free), Okefenokee National Wildlife Refuge ($5/carload); Andersonville National Historic Site (free), FDR's Little White House, Elvis' Birth Place, Mud Island (free), the Ozarks (free).

Also consider that the accommodations you'd need for two extra nights on the road will almost certainly cost lest than spending the same two nights in close proximity to Disney World and you can see how you can give your kids a much more meaningful RoadTrip than just hermetically sealed transportation to a plastic amusement park and back, for less money.

AZBuck