I have moved my fish more times than I can count. Being a college student I move a minimum of twice a year (at the end of the school year, at the end of the summer) and have had my fish every time for 4 years now. I'll give you my tips.
First off, DO NOT move the tank itself with any water in it. The sloshing around can and will break your seals.
All I did was buy a styrofoam cooler at the dollar store (for a dollar!
). I then used 1 large black trash bag to line it, and 2 smaller white trash bags to split the cooler into 2. I put my puffer in 1 side, and my columbian sharks in the other. I hooked up my air pump (that I already had) and used a T splitter ($0.99) and 2 air stones ($0.99) to oxygenate the water. I plugged the air pump into an inverter (I already had but can be found for $14, and has many more uses than this one) and voila, my fish were good to go.
I have taken them on: (4) 6 hour drives, (6) 3 hour drives, and (4) 1 hour drives. I've never had any problems!
Good luck!
-brent
PS- In order to make your tank(s) instant cycle (or at least mini-cycle) when you set it back up, make SURE to store all gravel and plants/decorations and especially your filter and biowheel (if you have one) in water. I did this by putting them all into ziplocks filled with water but they tend to leak so you can use whatever. The biowheel should be wrapped in a wet paper towel. This is a very important step in the moving process! Also, depending on the size of your tank(s) it can be beneficial to take some of the water. Say 5 gallons or so. The water itself doesn't hold much bacteria but incase the water where you are going to is much different, it can help in the transition. I did this by just buying distilled water and dumping it out and using the gallon jugs it comes in. I have had an instant cycle every single move.