Vin's advice sounds great.. I wouldn't clean the tank at all and try to save every last bit of water if i could.
And always, I am not sure if this is possible for you, but it is alot better if you have a day devoted just for the fish. On moving day, there are alot of things that can get you distracted, and this is the last thing you want to happen. If it is possible, I would move the fish in a day before or a day after moving day. That way you can devote that time directly to the fish and won't have to rush to get things done, etc. Just seems easier
