Wow thanks for the replies guys! really appreciate this. Job sites seem to think Arbs get paid alright, and my Gf has a friend from her uni course living in Adelaide as a a PT and is not too bad.
I did not know about the zero hours though so thanks, is that what "casual" means? And i also didn't realise that perhaps the job situation in Brisbane was as bad as it is. 2 friends from my course went out, 1 to Adelaide in Sept and 1 to Canberra in Dec and both got jobs within a month. Not sure if those areas are doing differently.
Also I like a scoop of protein shake after a workout but we don't use anything else we just like to eat healthy. No problem doing most of the shop at Aldi and getting a few things elsewhere.