WowAce

oUF element for highlighting debuffs that are dispellable by the player

Flames anyone who lets his debuff expire on Malygos Phase 3

Allows movement and scaling of class-specific resource displays

Automatic ammo reloading and selection, with warnings.

FuBar_WintergraspFu

A popup menu containing user-programmable scripts.

Congratulate people when they ding

XArt

Bars showing amount of buffstacks

Helps you see the Halion's Corporeality during phase 3

This addon helps us track Renewing Mist and Uplift for Mistweavers.

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

Automagically draw your weapons !

Shows a countdown bar for the duration of auras (e.g. HoTs, DoTs)

Shows where the equipment of inspected users or yourself is from.

eePanels2

KC_PlayerFramePlus

A library to provide tools for formatting money and time.

Makes tracking reputation much simpler. By InSo(v)nIaX

Gnomish math at its best!