Give some serious thought to building your own. It sounds like you have the required expertise (ability to use power tools without cutting off fingers). Be warned that while building a professional-quality cedar strip is not difficult, it is quite time consuming if you make the effort to do a good job. You will learn a lot, and probably end up with a better (but heavier) boat than if you bought one.

Ted Moores' book is called "Canoecraft". It has a bunch of plans in it, maybe there's one there that meets your needs. I built a Redbird - it's a small tandem, but goes like a rocket and handles like a dream, even solo. (The Redbird is the upper one on the cover, but mine looks way better - LOL)

Bear Mountain is a great site. The people on the message boards are extremely knowledgable and helpful (so it's not just Ted Moores's expertise you're tapping into), and you can find the answers to most questions just by searching the message board archives.

You will not want to use your handcrafted baby on whitewater though. But you will save enough money that now you can go out and buy a cheap Tupperware canoe for that.  :D

Good luck - if you decide to go ahead, I'd be happy to offer suggestions and recommendations wherever possible.