WowAce

Omnibus

Allows the user to preview and track their progress in the collection of various transmogrification appearance sets

Shows where the equipment of inspected users or yourself is from.

manipulate the minimap in numerous ways; move, scale, skin.

Improved Questing Experience

Keeps track of current money and all your characters on one realm.

ArcHUD2

Tracks, transmits and displays the cooldowns of your raid.

View an image of your guild vault from anywhere.

Keeps track of performance of memory, latency, and framerate.

Show vignette icons sooner

Open those pesky lockboxes

Food/water macro generator

MiniPet, Always keep your little companion with you, based on the work of Carra.

Litmus

DaHud

FuBar_InnboundFu

Keeps track of durability and pops up a dialog to repair when you go to a vendor who can.

WhoDrop

A library to help with localization of in-game subzone names.