I'm surprised to hear that Montair has a good reputation. Didn't they have some serious issues a few years ago?
One that I have had first-hand experience with is Professional Flight Centre, also at the Boundary Bay Airport (near Vancouver, British Columbia). John Montgomery has built up a very impressive operation over the years from one that mostly specialized in Instrument Flight Training to one that covers ab-initio airplane and even helicopter.
http://www.proifr.com/ (home page)
http://www.proifr.com/aviation-caree...x.php?uni_id=4 (International Student Info)
Shop around though. Not sure what the cost of flight training is these days in the USA (all the TSA security hassles aside) but the US Dollar is low, and so it may represent a good value for your training (cost of training in Canada is normally higher than in the USA due in part to a punitive tax structure, user fees, etc. and the value of the Canadian Dollar has climbed to almost par the US Dollar.)