WowAce

Collect data about you myth+ challenges

Percent

Allows you to create icons, which can be customized greatly by user's input. CiR is more than just the usual cooldown tracker.

Combat log replacement

Lag tolerance module for Broker displays.

Ghost: Pulse

Announces interrupts in the chat

Rawrkitty

Instant PROC notification

Announces ooze kill instructions during the Yor'sajh encounter in Dragon Soul. Highly customizable with numerous helpful feat...

Complain about crowd control breaks.

Vengeance module for Broker displays.

FuBar_DPS

Simple oRA3 Maintank Target Frames, based on oUF

mHud_Threat

Combat Alert

Shows the minimum durability of equipped items on the stats frame.

Mute error messages of N next spell cast.

EUF is an enhance of wow original unit frames, provides hp with both value and %, and optional 3D portrait. Simple and Useful.

A seperate focus bar, with focus gain prediction and rotation forecast.