...my nickel's worth...I've had real good success using good bubble wrap in a Styrofoam lined double wall corrugated box. I usually use FedEx and so far no problems. Of course, that's with me doing the packing. If there are heavy transformers, etc. consider removing them and packing separately if at all possible. It doesn't matter how well you pack it if they drop it off the dock transformers will be a problem if in place.
Good luck! Rick/K5IZ
