JOshua, thats absolutely a great way to transport fish! I have moved mine that way in a 3 1/2 hour trip.
Blinky, there is a great batterie operated airpump around that you can get. It runs for hours and hours to come, and its not a waste of money, since you can use it in your new house as well, in case a power outage occurs. You can plug it into an outlet, and as soon as power is out, the airpump will kick in!
Its called "Silent Air B11" from Penn-Plax, and is around 16$.
As for the trip itself, don't feed your fish 3-4 days before the trip, and age the water in the container a day in advance. Have some extra Amquel or whatever conditioner using handy, and thats all! One or two 26 gl carbage cans with lid work just fine......