Hey John,
You have a fantastic saltwater fly fishing club near by.
http://saltwaterflyrodders.com.au/wp/
Check them out. Great group of guys who are all so willing to help and share their info. There is also a certified casting instructor in the club who offers free casting lessions to club members before the monthly meeting.
For anyone else new to fly fishing my advise is to hook up with a club and get some casting lessons. When you're on the water you then only need to concentrate on fishing and the casting will become second nature.