WowAce

Quixote

Information display for Hunters.

Lets you drag UI frames around

Lists Pots and Herbs you got on all chars and allows you to specify color coding

A Data Broker add-on for quickly switching your specialization with gear set and loot specialization.

Draws some lovely 3D portraits in the standard Blizzard artwork.

Shows who controls Wintergrasp and the time until the next battle.

Warns you with sounds when you gain different shaman spells.

NBuffBars

Enhances the StackSplitFrame with numbered Buttons, a '1-Click Mode' and a 'Auto Split Mode'.

Displays info about who rolled Need/Greed/Pass on items that are currently rolled for

Handles the assignment, coordination, and announcement of many parts of the Lich King encounter in Icecrown Citadel.

Does a /who search of multiple dungeons.

A 'channeling spell'-tracking addon for Affliction Warlocks. Drain Soul, Drain Life/Harvest Life and Malefic Grasp.

Warnings about tanking specific abilities

Automatically sells low quality gray items and selected white items to the vendor.

eePanels2

TouristLib

Automatic ammo reloading and selection, with warnings.

Prospecting and Disenchanting Aide