Be very carefull before you come to Canada. There are more pilots than jobs at present. I have been here 12 months, and still have no flying position. As a legally landed immigrant, you will still take backseat to a Canadain.
I have 3600hrs and have been offered a position as a flying instructor on completion of my instructor rating here - unfortunately I get no credit as Canada does not have any bilateral agreements with my counrty of birth.
One other point, I have recieved replies from Air Canada and Canada Regional stating they will not consider me for employment untill I have flown in Canada for a year.
If you want to fly here - get all your licences completed before spring, and hope to get a summer job up north.
Good luck!