If you are running an amateur photoblog you might be interested in this list of 23 Free wordpress photography themes. If you run a business you might be interested in premium photography wordpress themes. Note: This post is old and some of these themes are no longer...
I stumbled upon this cool little flash photo gallery script that allows you to run a cool flash slideshow on your site. It is super easy to install and use. It's basically a few files you have to upload and change the permissions to. (that's not what you're looking...