Howdy,
Well do you have the right to live and work in canada/USA? if not then your hardly gonna be offered a job over there.
Also the chances of someone with 250hours fATPL getting a job in the US is slim to none as the american system works a little differntly to ours, I think most airline pilots in the US are ex instructors as most us airlines require hours.
As i have said to another guy on the forums, be carefull with schools promising you alot for not much wonga as they are often a little under par and often not certified training organisations,
Check the CAA website for the list of approved schools if you want a JAA licence, and i strongly suggest visiting each and every school you are interested in, talk to students there, ask for the school to provide testimonials etc.
research very carefully.
My 2pence worth
Nick