Hi Cray,
Go online to
http://www.ikointl.com/my-iko-buy-insurance.php and buy the IKO insurance, it is valid in all parts of the world and covers you for personal accident, Public Liability, damage etc
Their policy is new and the insurer is Lloyds of London so there is no issue with validity and payment etc. They are a AAA rated insurer and have an office here in Oz.
You can purchase online and travel easy! It is valid for 12 months and only costs $78.75 USD.
You can also win a new S-Bow Starkite, and you'll get a free copy of Kiteworld magazine for your trouble as well as 12 months membership to the IKO.
From the IKO Website Quote:
"The IKO insurance covers you during your private practice. It covers Bodily injury or Property damage caused by a member while participating in the sport of Kiteboarding, Snowkiting or Powerkiting.
It covers $1,000,000 Bodily Injury and Property Damage per Occurence, $1,000 Deductible for General Liability and $10,000 / 25,000 for Accident / Medical. "
Pretty good deal really!
Good winds,
). It DOES NOT cover you against theft, loss or damage of YOUR gear and apparently NOT injury to yourself. It does cover you if you collect someone else or their gear. This is critical especially if you are going to somewhere like the US. You simply cannot afford to hurt someone else when overseas whilst uninsured.
The whole IKO thing gives me the Sh1ts though as the wording boarders on misrepresentation. 
Thanks for your help. i will have a look at it & hopefully never have to use use it.