Hi Adam,
Personally, I use an iGrill but most of the boys and girls on here use Mavericks and they're the experts so they must be worth the money. I had a quick look at the CDN and it doesn't appear to have a remote receiver like the 732 and the iGrill.
These remote receivers really come into play if you're cooking low and slow and don't want to have to stand next to the Q all day, especially if you cook in the winter!! If you can save a few extra quid, IMO it would be well worth shelling out for a unit with a remote receiver, that way you can watch the tv in the warm whilst keeping a sneaky eye on pit and meat temperature
Good luck,
John