I purchased a case and I really like it. It's this one, from Chapters:
http://www.chapters.indigo.ca/ereadi...s%3atouch%3a26
It's easy to take the Kobo in and out of this case and it feels really nice and is well made. For those on a budget (or for those craving something unique), I suggest you check out
Etsy.com. I did a search for "Kobo case covers" and there are a lot of options in a variety of price ranges.