How far will you be moving?
We moved a 125 gal FOWLR, so my advice may not be totally fitting for you if you have corals and anenomes. I think they'd be OK though.
We went to Wal-Mart and bought about 10 of the 21 gallon Rubbermaid tubs. On moving day, I drained as much water as I could into those tubs and saved it. I also removed the sand and placed it in the tubs with enough water to cover it. Some live rock and all of the inverts went into one tub (I don't have much live rock...I'm working on getting more, so it all fit into two tubs.) and the fish and the rest of the live rock went into another. I took the powerheads and placed one into each tub containing animals. While I was working in the tank I also placed my hang on the back power filter on the side of the tub to filter the water that the fish were in, and it worked great.
We had rented a U-Haul just for the occasion, so we loaded up the tank, water, and sand tubs in the back and placed the fish and inverts in the car so that they could be in the air conditioning with me. (It was very hot that day) We were only moving about three miles away, so it was a quick trip.
Once at our new place, we took the fish and inverts indoors right away and started the pumps and the power filter again. Then we moved the tank in, set it up, replaced the sand, and put the water that I had saved back in the tank. Then I mixed new water to replace what I had to discard. I left it to circulate and heat overnight while the animals stayed in their temporary homes. Be sure to drip acclimate the animals in a bucket before you put them back in the tank, just as if they were new to the environment.
The only thing that happened was that the tub water temp dropped quite a bit by the next morning...something that I didn't think about. You may want to consider buying several small heaters if you can and heating each tub that contains live creatures. Everything survived with no ill effects except for an emerald crab who was hidden in a piece of live rock. I didn't see him and I plopped him into the new tank water without acclimating him. He didn't do too well with that and died the next day.
Good luck!