WowAce

A powerful, comprehensive utilty for displaying graphics and information based on buffs, debuffs, and other triggers.

Numerical and graphical display of Combo Points and similar buffs/debuffs. Also tracks Holy Power and Soul Shards.

Display auras on action buttons.

Threat reactive nameplates for TidyPlates.

EBB adds groups of bars to your screen showing you which (de)buffs currently affect your toon or some other units.

Textures for Stop Motion

In-game theorycraft. Calculates actual damage/healing based on gear, talents and buffs.

Kaliban's Class Loot List Star Display

A full package of auras for all 3 Shaman specializations

Simple, light-weight, LDB-enabled timer that tracks how long you spend in combat

Insanity resource tracker for shadow priests.

Auto and random summon highly customizable for your pets and mounts, with Data Broker support.

Additional information about player spells.

Simple and rich Death Knight rune customizations

Display aura information inside action buttons

Alternate Rune Display

Compact & customizable filtering, monitoring and grouping of buffs and debuffs

Co-ordinated targetless Party and Raid wipe recovery. Evolved

Checks your gear before bosses and yells at you if you're an idiot

A Data Broker add-on for quickly switching your specialization with gear set and loot specialization.