I loathe Microsoft software. I love Microsoft hardware. They really know how to do hardware.
So I'm very interested in the Amazon.com: Microsoft LifeCam VX-6000. I zoomed the Amazon images and I was able to imagine that the damn thing might even have a focus ring.
I experimented years ago with various PC webcams as a videoconferencing aide. I wanted to image a whiteboard and send readable snaps every 5-10 seconds. The devices ran into bandwidth issues (too much data for a USB 1 cable) and the resolution was inadequate. I think these guys might work. Very neat.
I wonder how they compare to Apple's excellent webcam (though the built-in ones aren't as good). Alas, the Apple cam only works on a Mac. I wonder if this one might do Mac as well ...