Hello,
I am a few weeks away from completing my pre-doctoral internship and starting a hospital-based position in Ontario, so I can give you some information based on my experience and the experiences of my friends.
Getting a hospital-based job is not very easy in Ontario. Lots of psychologist positions are being cut in mental health settings, and I know several people who struggled to find hospital positions. That being said, it isn't impossible to find a hospital-based job. The most plentiful jobs are in child psychology (based on my job hunting over the last 1.5 years). My specialty area is forensics, and I can tell you in the next year or two there will probably not be a single available psychologist position in a forensic hospital. There are many psychologists jobs in prisons though. I can better address your likelihood of finding work if you let me know what you particular interests are (clinical expertise, research, etc).
As far as post-docs: People do not typically do post-docs in Canada unless they are seeking an academic career. In Canada, most people work a full-time job during their licensing year.
Let me know some more details about your career plan....[/QUOT