Here are some tips off the top of my head:
Bag the fish and plants and put them all into a cooler (or as many coolers as you need). This will keep the temperature constant.
Don't feed the fish at least 3 days prior to the move, this way they don't soil the bag.
Use fresh water in the fish bags instead of aquarium water to ensure the cleanest environment possible.
Bag the filter media in aquarium water and place it in the cooler with the fish.
Don't waste your time and effort moving water - the bacteria that we want to save is not free swimming in the water, it is on surfaces in the tank. Only move enough aquarium water to keep the substrate and filter media wet. When you set up the tank again you can use nice, fresh, clean water.
Good luck with your move!