Canon has a much broader selection of lenses.

That's what I originally thought, but it's not true for wide-angle lenses. Particularly with sensors being smaller than a traditional 35mm frame, it's difficult if you want to shoot really wide images. You can spend the extra bucks on an EOS 1Ds or one of the Kodak bodies to get a full-frame sensor, but the Nikon DX lenses seem very attractive, particularly for their weight savings. You get many of the benefits that are normally claimed for the new 4/3 system, but you have backward compatibility to decades of used lenses.

Nikon has way better exposure metering, and better flash metering.

This may turn into a deciding factor for me.

The Canon 10D is the best all-around DSLR out there right now

And this is what's keeping me from going to B&H and just plunking down my credit card.