Hey-I'm going through the same thing right now. I move in one week and have been preparing for it for a month now. WIth my 55 gallon tank it's gonna be tough to move. I have a 10 gallon mini that shouldn't be a problem at all. But here's what I'm doing. I went to a local store, like Ames, Kmart or something like that and bought those big plastic containers were people put clothes and stuff in them to stack in their basement or attic. They're kinda rectangular. They come with lids so the water won't splash. I bought a big 38 gallon one. I'm going to empty my water and fish in there and drive, lucky for me it's only a mile away, and set it back up right away. Shouldn't be a problem at all.
Just my 2 cents,
peace
doug