Keyboards with wells like the Maltron, the Kinesis Advantage family, and everything dactyl-esque out there are great. Trust us, we know this firsthand. But if you want to build your own curvy girl, ...
First off, my favorite keyboard is my old Model M. If that offends you, this is not the thread for you! However, it lacks the necessary Mac keys, and my desk is cluttered, so I'd like to go wireless.