WowAce

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

Considers an item against all the items you have to determine whether or not it is an upgrade

Adds manabars to the sides of Grid frames.

OneBag

lern2count adds ABinfo castcounts to spell and actions. It has a builtin reagentcount too.

Improved Quest Tracker

Watch tooltip updates to announce when you find specific objects

A Library for stat conversion, calculation and summarization.

Shows your standings with the factions.

Rep2 displays a message, which shows how much reputation you gained, and how much is needed until the next standing.

Expo

One-click smart mounting.

Taggle

Provides information about the player's bodyguard.

Alternate Rune Display

Shows class colors on player nameplates and names

GemList

AnchorsAway

Rewrite myBindings. An enhanced key bindings interface.

Displays the zone level ranage of the zone you are in and also gives you a suggest zone and instances to be in.