WowAce

Sneakily inspect how much gold your mouseover target has made so far.

Prospecting and Disenchanting Aide

Replacement for the default nameplates.

FuBar_AlarmClockFu

Helps you automate selling stuff

Menagerie

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

mHud_Threat

JostleLib

TrapBar

Automatically sells low quality gray items and selected white items to the vendor.

Dropin replacement library for SetBackDrop

PiraPlex

Puts a timer in /yell when you get Unbound Plague during the Heroic Professor Putricide encounter

BigTrouble

Adds item values to chat messages.

Dynamically atering layout in raid environment (Tanks, Ranged / Melee DPS, Healers)

TipHookerLib

Adds Friend and Guild options to the context menu of player units.

Draws some lovely 3D portraits in the standard Blizzard artwork.