You always need to know what you're buying before you buy it... and the "Adirondack Paddlefest 2010" is one of the largest "on-water" canoe and kayak sales test-events, on any waterway, in the East!. Take out as many types and models as you'd like... they'll hope you do!
This a manufacturer's participating event, so you can ask their experts and representatives (of their respective companies), exactly why a deeper draft on some canoes is preferred or what length of kayak and it's options for gear-storage are best for the waterways you plan to travel. There's sure to be other "guide" information too, such as paddling techniques, routes to local B&B's, to guided tour-trips. And, you couldn't be in a more prestine spot in all of world, in my opinion.