Its been a day for Drupal releases. The most important for our clients is the release of Drupal 5.4, which fixes a possible SQL injection vulnerability (its one of those obscure ones which shouldn't affect too many people hopefully).
One of the most annoying things about developing a Drupal theme is the lack of an 'active' class on your primary links. By default the primary links are given a class of menu-X-Y-Z-active if they are active. From a theming point of view, this is next to useless, you need a nice standalone active class on your primary links.