Just a housekeeping note to indicate that I’ve successfully updated the site to Movable Type 3.0. I had debated between upgrading to MT3 or switching to WordPress, and in the end decided to stick with MT, for now.
The primary reason for making a change at all was to improve the site’s spam handling capabilities. Jay Allen’s MT Blacklist plugin works great, but I wanted more choices. While WP arguably provides finer-grained control over comment settings, in the end familiarity with MT won out.