WowAce

Display aura information inside action buttons

An addon to assist with organizing healing in a raid set up.

NBuffBars

Displays Pet Info for Hunters and Warlocks. Also keeps track of Stables and Pet and Demon skills.

Better quest log and tracker

OneBag

Displays information about the current zone on the World Map

Adds achievement reminders to BigWigs

Keeps track of durability and pops up a dialog to repair when you go to a vendor who can.

A full package of auras for all 3 Shaman specializations

Searches bags/banks of all your characters/guilds.

Open all your mail

Role playing AddOn that shows extra information about characters as entered by the player.

A customizable casting bar replacement for TBC Classic & Classic WoW

Rebuff yourself with the mousewheel.

Simple quest item bar.

Pins on the World Map for quests you have not completed yet

Reports in raid chat whenever a raid member "fails." /EnsidiaFails to configure.

Additional information about player spells.

A jukebox for playing wow embedded music.