Cliff, you're an oenophile at heart, man!
Looks like U-HAUL sells a wine shipping kit for ten bucks!
http://store.uhaul.com/master_product_detail.aspx?id=169
This is the only product or service from U-Haul you should ever consider, by the way. That said U-Haul will probably find a way to piss you off during the experience of purchasing the above kit so be ready. Their motto: "We have positive revenue growth because the birth rate exceeds our ability to upset customers."
Good luck!