Mine was about 30k annually because each semester fees set me
back 10k, 2 semesters 20k, my budget was tight so its like 5k for
each semester's expenses. Back then, the Oz dollar was on par with
the singapore dollar, unlike now, I reckon its more worth spending
the money to study in the USA instead since the Oz dollar is on a
climb.
Most of my expenditure went to accomodation, I think it was like
600+ a month, because living in the CBD ain't cheap. Daily meals
was try to make own breakfast and dinner, lunch no choice have to
eat out. If you have night classes, that'll be a headache.
If you decide to take up the visa that allows you to work, its
20hours max per week. One of my housemates took a server job at a
nearby foodcourt, taking 15 bucks per hour, most of the time she
brought leftover food home.
I reckon brisbane is one of the places with a lower cost of
living, slightly higher than western australia. Sydney, melbourne,
and southern australia should be more expensive. Tasmania is for
the rich.
You hush hush can work more than 20 hours. I got one student
fren work 30 hours part time.