WowAce

Track of your tradeskills across characters, create small buttons for them and track cooldowns.

Piece of mind by being one with your class.

Detox

Gives detailed descriptions of particular localities, as zones or instances, and provides optional TomTom integration.

RoleCall allows you to easily see the talent specs and roles of everyone in your group.

Shows activity for hidden ChatFrames by making their tabs flash.

GUI Configuration Library

Announces Mage Spells in chat.

Hides MicroButton Alerts

LCDs for WoW

ScoreSort

Shows the health of the player's current bodyguard.

Automagical macros for each talent tier.

You've got mail!

Visual Raid Cooldown Tracking

FuBar_TimerFu

Collect data about you myth+ challenges

DeclineDuel

HunterAEP

ItemValue