I've put a couple of files in the Downloads section that might come in handy.
Simply put, they are the entire collection of designated airspace within Aus, all of the flight information boundaries, and the area forecast boundaries.
I'll keep them all updated when any updates are published. The files are only shortcuts to the live versions on my server, so you won't have to do anything regarding the updates... all automatic.
Naturally, these aren't to be used for navigation.