WowAce

Exports a list of raid members.

DrumLogic

Smoke Signals

MikScrollingBattleText Plugin for Hermes

A simple xp bar that shows you the entire journey from 1 to max level

Tracks Dark Intent uptime per stack as well as well as average stack size

Macroception allows you to call macros from within another macro.

Addon control panell and performance monitor

Chooses the most expensive quest reward and vendors it when possible

Play Bejeweled like a pro

FuBar_SimpleDurabilityFu

Saves your watched quests and achivement between sessions

Cataclysm Currency and Honor Calculator.

Shows your raid members' equipped item when mousing over loot.

DataBroker plugin that shows and sets the current dungeon and raid difficulty.

Remember hat/cloak visibility settings for gear sets.

BuyCrap

SalvationVeto

RatKiller

sorts the raid alphabetically