WowAce

Add item levels to Inventorian

Adds unreal tournament style sounds to PvP encounters.

A replacement tradeskill window

Ironi's Encounter Event Tracker

Highly-configurable shield / absorb tracker.

Shows class colors on player nameplates and names

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

FlexBar2

Simple quest item bar.

Tracks the current Fear Ward's in the raid or party.

Nihilum Raid Tracker, originally written for the EU guild Nihilum.

Prat

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

Adds party/raid role icons in useful places

TabletLib

Raid loot tracking and text generation

Adds a highlight border to items in your MogIt Wishlist, making them easier to see.

Incoming Heals

Adds custom effects to your cursor.

In-game EPGP guild helper, supports standby, main/alt shared pools, minEP, offpecGP. Fixed price list with progress multiplier.