[SOLVED] Remove footer from specific posts

Is it possible to remove the post footer from specific posts on both multi- and single-post pages?

I use atahualpa for my photoblog and have customized it to include a link to purchase each image in the post footer. Occasionally, I write a post without a photo, and would like to remove that line (or the whole footer if need be) from those posts. These posts generally fall into a single category (or I could create a custom category or tag for these posts).

Thanks!
Jonathan