I'm studying abroad in France right now and I'm trying to read mostly in French because I'm taking the DALF in a couple months. I also depend on my local library to provide me with books :). Luckily enough, it's got a good number of books by Québec authors and others by English-speaking Canadian authors translated into French.
So, here's my selection:
Québec:
Paul à Québec
Paul au parc
British Columbia:
JPod
Ontario:
The Complete Essex County
Saskatchewan:
Cool Water