PLEASE NOTE: Some of this info is now out of date as the rules have changed. The safety rules are the same, but you can now use a sub 2KG drone for commercial use as long as you follow all standard safety guidelines.
Hopefully we will make a video soon with some updated info.
Where to fly a drone in Australia.
Some handy Apps
http://www.hoverapp.io
https://goo.gl/owTSc2