WowAce

Visual Raid Cooldown Tracking

Tracks the precise arrival & departure schedules of boats and Zeppelins around Azeroth and displays them on the Mini-Map and ...

Adds manabars to the sides of Grid frames.

EQCompare

Cartographer_nnTrainers

Buffalo

Options for TinyTip

Client for MagicDKP which handles standby calls and bidding on items.

Display bag usage on each of your bag slots.

Set the clicking action for Grid buttons

TrackingBar

Cancellation

Helps you automate selling stuff

TradeStop

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

Rewrite myBindings. An enhanced key bindings interface.

Highly-configurable shield / absorb tracker.

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

Display an informational fighter jet style HUD while flying or riding

Gives a score for your kit allowing easy comparison with others, also colour codes kit based on appropriateness for your level.