i was watching some interesting reviews of the new Colorado (also applicable to the Canyon, of course) and you can get all sorts of interesting factory applied accessories included with your truck...the accessories were made in partnership (i think, as they had their label on them) with Thule, to carry a wide variety of "stuff" (surfboards, bikes, kayaks, etc)...not sure if they had one for a canoe, but it looked like a well designed system.
as well, the reviews of the new Colorado seem pretty good...i was already planning on taking a look at them when they come out, but the more i see them, the more interested in them i get...i'm not 100% sold on getting a GM truck, but i suppose if there is one thing they get right, it's trucks.