WowAce

BetterOutbox

Toggle Windowed Mode with click or keybind.

Lists and/or reminds people missing flasks or food buffs at every ready check.

FuBar_DPS

Does a /who search of multiple dungeons.

Prospecting and Disenchanting Aide

Objective Tracker

DelMapa

Social tracking suite.

A seperate focus bar, with focus gain prediction and rotation forecast.

Customize the appearance of the chat bubbles.

TrapBar

Fancy up the PlayerPowerBarAlt frame

Keeps tracks of /rolls.

Show optimal path for artifact leveling

Debuff Monitor: A Powerful & Configurable Raiding Tool

Tool for easy task assignments in raids.

Client for MagicDKP which handles standby calls and bidding on items.

BigTrouble

Displays bars depending on your professions