AtlasLoot Enhanced * - Download - A MUST HAVE! addon for those who want to gear up doing instances, as it tells you what drops are possible and from which bosses/which instances.Atlas * - Download- A MUST HAVE! It gives a map for every instance/battleground in WoW.It keeps record of all information concerning all your chars (+ guildes) in one addon (mail, items, skills, level, professions, etc). Altoholic * - Download - MUST HAVE!Probably my second favorite addon.
Addon Control Panel will help you deal with the 'Clutter' that multi-part addons and libraries introduce by displaying your addons in logical arrangements.