Hey Cobba,
Thanks Dave.... the site is www.kiteboardingschool.com.au
There is tonnes of info in the FAQ's and also other pages. Most reputable instructors or schools are charging around the same amount, it will come down to where you live and who is closest more than likely.
You've already got the full list from the team at WAKSA, follow their link and see who can help you.
Cheers and good winds,