WowAce

Keeps account of attendance and loot for raids, parties, bgs, arenas and solo for questing.

ItemSync the happy item gatherer and toolkit.

Manufac

Mutes various chat related annoyances while in capital cities and instances.

Sorts the Wardrobe

Automates bites during the Blood-Queen Lana'thel encounter in Icecrown Citadel

A data broker display, that shows one block per plugin.

Necronomicon2

Displays classes and specialisation dependent stat priorities provided by icy-veins.com

Add item levels to Inventorian

BA3_SpellAbilities

Enhancer

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

Combination of Titan LootType and Roll - stripped down and cleaned up.

XRS

An addon to assist with organizing healing in a raid set up.

Incoming Heals

Simple right click casting.

Incubator

provides enchanters with a decent tool for managing their profession