Movers should be able to handle most of your packing for you. In fact, it can be quite helpful if they do the packing. This way, they can pack all of your items safely in an expert manner so that it all makes it to your new home without any problems. Having them pack makes sure it gets their safely.
Moving companies should provide full training to their employees. Before hiring a moving company, make sure that you contact them to ask about their training. Are new employees given a training course to insure the proper methods of packing and moving are adhered to?