Have you considered how one might customize the layouts if you have a mix of blogs with and without pictures, or is that not the target user? The default views do not not look very usable in such a setup. Otherwise, this theme looks very tempting.
Photo Blog is designed for photobloggers, i.e. those with image-rich sites. If that doesn’t describe your own site, there are lots of other suitable themes. I would be glad to suggest a couple of themes if you let me know what you’re looking for.