Since a couple of days back, this site is now running on WordPress 2.9, and here are some of the reasons why you should go for the upgrade too:
Post Thumbnails: add an image to be automatically displayed with the post in various views (main page, archives, etc.).
“Trash” status: deleted items such as posts, pages, and comments now go to the “trash”, and can be recovered later, much like delete files in most modern operating systems.
Image editing: basic image manipulation for your media library. You can rotate, flip, resize, and crop images.
Read more about the new features over at WordPress.org.