Anyone looking for the book (including cheaper than the cheaper of the two mentioned above) may want to try Amazon.com (They had more results than Amazon.ca - including cheaper ones.) http://www.amazon.com/s/ref=nb_sb_no...ront&x=15&y=21
For any Kindle users, you can request to have any book converted to digital form which can then be downloaded for much less than purchasing the book. One caveat though, it's great for text only, any pictures will be mono-chromatic but still viewable.