To put it simply... unless you have a residency permit, than you will find it next to impossible finding work. As I am sure you can understand and respect, Canadians will generally hire, aside from being obliged, to first consider and hire Canadians. There are a number of Ossies in Canada but I'd say most are in rotary and/ or hold a working holiday permit, eligible to those under 30.
If and when you do get your residency then I would say you still may be relatively limited, especially if you are looking for something in the city.
This page should give you an idea of the minimums for carriers and charters.
http://www.pilotcareercenter.com/Job...sp?CountryID=1
There is a great deal of competition in Canada and for a new comer it may prove difficult. My advice would be to look outside the city centres, to places like Prince Edward Air (peair.com), or there is a carrier or two in BC operating the Metroliner. OTherwise head up North a bit - beautiful country and after a year or two building some more hours and making your contacts in the industry I am sure you'll be well on your way.
Best of luck.
yyzdub