Welcome to WA, you're arriving at just the right time.
Kitestock info for you:
1) WAKSA or AKSA membership is required 2) Most crew camp at the numerous caravan parks or find accommodation otherwise - heaps of villas & chalets & private houses to rent. 3) Camping on the beach won't work - rangers will be all over you. 4) It is a blast. With a four day event in 2012, next year is going to be bigger & better than ever before.