LiquidBlues,
I moved my 55 about 4 months ago from Hoboken to Westchester NY by myself, here's what I did.
I bought about 6-7 rubber tubs (pretty cheap at Target) and put my fish/livestock in a couple, corals and some rock in 2 of them with some water, and 3 others with sand and water. I also filled as many water jugs with the tank water as possible. (Got about 10-15 gallons of it in addition to what was in the bins). I then moved all this to my new place in 2 trips (I have a small car). (You can probably get away with less bins if you have help, I didn't so I tried to keep things reasonable in weight.)
Once I got to my new place, I condensed some of the bins, and added the tank water I took with me into the bins, put in my heaters and powerheads, and left my stuff like this for about a week. (You don't have to wait, but I had too.)
During this time I was able to get my tank moved, install a new GFI outlet, and make about 25 gallons of new water. I then added the sandbed back into my tank and let it settle for a day with about a half the tank filled with water (some new water, some of the used water) and a powerhead. Then next day I added the rest of my rock and livestock and topped off the tank with more used/new water combo. It was murky for about a day. But cleared pretty quickly overall.
I only lost 2 things, one cleaner shrimp who got too close to a powerhead, and 1 monti digita I broke when I put a rock on top of it by accident. Otherwise everything livestock wwise ell did just fine, I think the move and resulting large water change actaully helped, things looked real nice and bright within 2-3 days.
Well that's what I did... everyone will have a different way of moving, by my biggest suggestion is not to skimp on bins to carry stuff in. Carrying 150 (or more) lbs of wet sand in a tank is asking for trouble for the tank and your back.... for 20 bucks you can make it (4) 35-40 lbs loads, which in the end will be well worth the money, plus they work nice for storing extra fish stuff/suppies afterward.
J.