WowAce

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

Automatically generate and announce optimal spirit totem assignments during the Gara'jal encounter in Mogu'shan Vaults.

Tells you the Tiller, what food they like, and if you have fed them today for the quests A Dish for ...

FuBar_RegenFu

Makes the Blizzard options frame movable and resizable

FuBar_uGuild

Fancy up the PlayerPowerBarAlt frame

A fountain of fonts for your funktastic UI.

InfiniBar-2.0

BankAccountant

Save and send chat messages to many channels. Allows quick item and profession linking within your messages.

A clone of the FailBot mod. Announces raid member failures such as "Player1 fails at frogger"

Keeps track of HoTs, DoTs, Buffs and Cooldowns. With audio and text alerts to refresh them.

wRlog

Speed plugin for any DataBroker display.

Heads Up Display with Player and Target Info

A Data Broker display for combat statistics.

Displays Pet Info for Hunters and Warlocks. Also keeps track of Stables and Pet and Demon skills.

Cartographer_Routes

Shows the spec of people around you in the tooltip.