well, ive only done it once, but we didn't lose anything in the move, so I'll tell you what we did.
i have a 180 gallon, stand, hood, with about 50 pounds of live rock, corals, and i think there were 9 fish.
first off, i got as many people to help as i could. we ended up with 4 people. we put our heads together and made a plan before anything. we didnt want to run off all half cocked.
we had i think six 6 gallon water jugs. 2 50 gallon sealable storage bins, and big plastic ziplock bags and a styrofoam cooler for the fish.
we put the plastic bins in the back of my pickup and filled then with water siphoned from the tank.
then we started siphoning water into the 6 gallon jugs. once the water level was down, we pulled the liverock out, quickly getting it into a bucket, then transferred it into the 50 gallon bins. once all the LR and coral was moved, we sealed the bins. the we scooped the fish out and bagged them. then drained the rest of the water, keeping as much as we could. we left enough water in the tank to keep the sand moist. then it was a matter of manually moving the tank, stand, and hood.
once we got the tank to my house, we situated the stand, put the tank on, and refilled from the jugs. transferred the LR and coral in using the same method as earlier. then we mixed some new salt water to top off what we lost. and once it settled a bit, we floated the fish baggies, and acclimated them into the tank.
so with 4 people, we moved a 180 tank, water, liverock, and fish about 3 miles, in about 4 hours.
im sure there are smarter and better ways to do it though. hopefully someone has better advice than me!