You can also get epub books from Kobobooks in Canada. You can go there directly or access it through Chapters Indigo. Coming in the next few months they're going to let you pay for them with Chapters gift cards but not right now.
I was PO'd because I got a gift card for Christmas and couldn't use it so I called customer support and was told it's coming in the next 90 days or so but give it a few more than that to be sure. He also told me that when that does become available you'll see it on the Chapters & Kobobooks site.
HTH & enjoy your new reader. I'm loving mine.