WowAce

Displays the time until the next battle and more.

tekKonfig

Piece of mind by being one with your class.

Mapster's Minimap brother

Blocks Chinese Chat

Swiss Army knife for instances, including player tracking, ignore buttons, loot tracking, notes, and more.

FuBar_TransporterFu

Battleground Timers in a HUD around the Blizzard BG status

Hemlock

A customizable view of friends and guildmates.

Sanity2

DogChow

FuBar_ToFu

Tells you who bought your auctions.

Displays an alert whenever you loot an item for the first time.

QuestAnnouncer

Shared handling of media data (fonts, sounds, textures, ...) between addons.

WF3sec

Tell you where all the daily elite pets are

BeneCast 10