try asking a local drum shop that you like to buy things from. for example when i was a kid i bought my first drum kit from a local shop and was always in there buying random stuff/hanging around. i could have bought my equipment without their mark up, but i went in there out of kindness/because i liked them.
well, now that i'm older they do me nice discounts on sticks to keep me happy. i recently got 12 sets of pro mark 5a for £50. i haven't snapped sticks in quite some time, but i do break the tips.
alternatively you can shop on eBay (i mean i do it all the time for drum stuff), but i'm not sure what the selection will be like in australia. azrael is right though, you can get generic random sticks really cheaply. just make sure you shop around and don't be afraid to barter with people.