Site ownership, Forum admin & repair, Backups, User management, Email management & updates of the "index" page.
Wesley Tucker is slowly taking over

He does the avatar management, part of the user management, forum management etc.
Jack Smith also has admin rights, but performs no specific admin task at the moment.
Sam Gordon, Corky and a few others (probably none of the "few others" remember their login, as they're not often here) have access to the FTP site to upload images and movies.
There are also a number of moderators with certain rights. In general not very active in actually moderating.
/Jani