I'm also using WordPress/Atahualpa for my photography blog at www.lafleurphoto.com . I was able to use Atahualpa's conditional statements (if x, then y) "above the loop" to create a unique layout (showing only one post on the front page, adding a bio above that post on the front page and making it look like a right-side column). I really appreciate how robust this theme is, along with the great forum support that has answered several questions along the way.
@Aaro: I'm using 4 instances of the Flickrpress plugin to display random refreshes from Flickr sets. However, I really like the way you set up the photo galleries on your site. Well done.
I would not be surprised if Atahualpa eventually became the default WordPress theme. Is there anything it can't do?
Michael LaFleur
www.lafleurphoto.com