WowAce

LD50_ap

Provides bang-whispers for your professions.

TMrecruit

Nvp

Show who is targeted by at least one enemy, and the casting progress of the incoming spell.

SanityBags

"Range finder/display for Discipline's Holy Nova"

eeMon

A library to try to guess a level of a player.

Tacticial pet battle information so you can be a Pokemon master

Shows loot information in item tooltips

Shows a countdown bar for the duration of auras (e.g. HoTs, DoTs)

Sets you to DND when you fight a boss, and some other crap.

Shows skills in a tooltip and allows them to be used.

Uses Loot-a-Rang on double right click

RS_ClassColors

Show a relative threat bar.

Adds Name and Buyout Price sort columns to the auction house.

Adds TargetIcon status to Grid2 (player / player-target).

Aperture