Lots of Aussie's in British Columbia!!!, very Aussie friendly place!!!
Montreal has the happiest people, and Toronto - unfortunately where a lot of the jobs are, but not a happy bunch.
I think if your a go getter, like most Aussie's - I don't think you'll have no problem finding work.
Plus I'd choose a happy Aussie over an unhappy Canadian - any day!!!
Good luck on your working holiday - have fun.
Rob CYKZ (unhappy Toronto, fortunately I travel a lot!!)