WowAce

oUF layout looking like ag_Unitframes and Grid.

RaidMarshal

See all incoming casts on your target. Also includes resurrection monitor. Uses libhealcomm-3.0 and librescomm-1.0

Really very early stage. No, earlier than that.

Automatically switches Profiles of addons when changing spec

Tooltip scanning library.

Adds support for LibFilter to Baggins

Simple, nice-looking power bar addon for all classes.

Tracks interrupts

User-configurable protection for your inventory. Automatically buys back mistakenly sold items.

Automatically equip 'Chef's Hat' if the Chef enters the kitchen (Cooking TradeSkill).

Automatically and immediately cancels all in-game cinematics and movies

Library for tracking mouse gestures

Draws 3D portraits for main units that can be moved or resized at will.

Raid cooldown assignments for healers

Notifies you when you get aggro.

Adds aggro coloring to oUF.

Automatically converts a party to a raid when you attempt to zone into a raid zone without a raid.

Counts stacked lifeblooms and uses progressive colors to indicate the active number of HOTs.

AllYouCanEat shows information about the following statistics: beverages, foods, bandage types, potions, elixirs and flasks.