Hi Dave,
Instead of shipping your rig, you could go "Amazing Race" style and check your cases as regular luggage on your commercial flight. My insurance already covers my equipment in transit, and I usually fly with a group and each crew member will check one of my cases, thus eliminating excess baggage or shipping charges. I have had pretty good luck with this system. If you fly Air France, they have a 32 kilo maximum on each checked piece.
John
http://www.johnperry.tv