WowAce

Shows a window displaying any raid member below 10,000 health during the Chimaeron encounter.

Splut

Tells you which blob to kill at the Yor'sahj encounter in Dragon Soul.

A loot distribution addon meant to improve master looting during raids.

Shows missing buffs and handles welfare and deluxe buffs as one (motw/gotw, blessings, etc.). This lets you see when you nee...

IDCard

Shows a nice Soulstone Monitor.

Replacement for the default minimap.

Puts a timer in /yell when you get Unbound Plague during the Heroic Professor Putricide encounter

Welfare Epics

Shows more recipies in the profession window.

Prospecting and Disenchanting Aide

Raid target control and instance shortcuts for Broker

Shows a money overview for your current realm in the tooltip on the money in your bags

Test whether the player can really dispell a buff or debuff, given its talents.

Sneakily inspect how much gold your mouseover target has made so far.

Broker2FuBar

FuBar_MonkeyQuestFu

Keeps a list of all items you want and shows how much you need.

Recap