I paddle with a wing blade 5 days a week in whitewater on the Ark. You don't want to go creeking with it or anything, but if you want to get into wildwater you are wasting your time with any other type of paddle.
I am a huge fan of Gala Sports, just google them up, I like the cobra style of blade, I have 2. Make sure you get the metal tips on the blades if you are paddling in Colorado so you can hit rocks. I have one that is all carbon and one that is carbon/kevlar. The carbon/kevlar is a little heavier but it seems more bomber.
Prijon also makes a wing paddle and they might have them in stock at wildwasser if you are on the front range. If I can answer any questions as you are shopping just PM me here.
As a side note if you have not paddled with a wing they are wierd and a little hard to get used to at first. Some of the whitewater strokes that you do all the time right now won't work very well with a wing blade. But once you get used to it everything else feels like you are swinging a wiffle ball bat. Awesome forward power with the wing.