Hola!

What's the best way to mirror the main navigation menu that you'd typically have at the top of your site in the footer or along the bottom in some place.

Thanks

The easiest way would be to
1) build a custom Wordpress menu and then
2) add a new widget area to the footer then
3) add the 'custom menu' widget to the new footer widget
4) style it the way you want (this part might take some work)