How convenient I'm a cute, single Canadian girl!
Seriously, though, I would do your homework before you put too much effort into heading north.
I'm sure it's the same in the US, but having a few pals who fly for the commercials, it's a tough, tough go here these days. More than a couple have left the industry altogether.
The morale at Big Red is in the tank, they are on the verge of bankruptcy protection, contract negotiations and I'm quite certain that they aren't hiring at all right now. WestJet, while a more profitable organization, is having their own issues.
I'm making the assumption that you are looking for something with one of the big guys, but if you haven't visited
www.avcanada.ca , you might want to consider popping in there to get a feel for the situation up here. (Not a ton of discussion here on the Canadian aviation landscape, and even the avcan forums aren't terribly active).