Boats, canoes and kayaks included, generally do one or two things well. A white water canoe isn't the kind of canoe you'll want to purchase if your primary intent is fishing. That is not to say that you can not fish from a white water canoe or use a sporting canoe for white water. You can, but you have to know the trade offs.

Setting price aside for a moment, I suggest that you look over your list and determine what is it that you want your canoe to do most. If you will be solo fishing and only occationally fish with a partner, I suggest you look toward something you can handle by yourself both on and off the water - e.g. light weight and maneuverable. (Whether the canoe is designe with 2 seats of if you have to use a jump seat, you will always have room for a partner.)

Maybe it is important for you to be able to stand up and cast. If that is the case you will want a canoe with a wide bottom. Keep in mind, what make up in stability you'll loose in speed and maneuverability. There are always trade offs.

You also need to look at the area(s) where you will primarily use your canoe. It it will be in a shallow, rocky area, you might want to stear clear of fiberglass or canvas/wood construction.

An electric trolling motor can be used with just about every canoe using a side mount. Double end canoes are faster and more manuverable than square end canoes. So unless you are using a trolling motor or small outboard 99% of the time, a square end canoe isn't necessary.

Do your homework and figure out what canoe works best for you. Don't settle on buying something used when you can get the type of boat you want new. Think of it as an investment. A well build canoe is something you can pass on to your kids.

Above all else, don't buy a canoe until you've put it in the water and tried it out. Take your fly rod with you and make several casts. You wouldn't buy a car without taking it for a test drive, right?