If you need to renew your atr you will be able to find a couple of good flight schools in YYC. If you have to write the MOT test again I would suggest AeroCourse. They are at 1-800-461-8857 or fax 1-905-271-0345. I took them a couple of years ago and can only recommend them. However, stay away from Michael Colhane books for your preperations. Very overprized.
Good luck.