WowAce

Adds Outfitter set filters to AdiBags.

Provides training reminders to help decipher the Blizzard Spell Alerts.

Makes the Battle Objectives Frame movable

TMrecruit

Opacity effect on action buttons in cooldown.

Automagically call who should cross over

Announce which globule to kill during the Yor'sahj the Unsleeping encounter.

Good looking, smoothy and helpful nameplates

Bag and item management utilities

Displays Currencies as a Data Broker source

Make the unit frame fade if out of range.

Adds an additional spell alert if you have more than one charge of a buff that is normally tracked by the in game spell alert...

FuBar_jabberFu

MD5Lib

Improved Guild Control Panel

Status indicator that shows if a unit is hostile (probably mindcontrolled)

TEALib

Adds a third text indicator to Grid.

A data broker plugin showing your longest fight and your current fight time.

IFrameManager