WowAce

"Shows Call To Arms status in an LDB data provider."

Database of your death locations for HandyNotes

FuBar_VoiceFu

Display and change minimap tracking modes from your FuBar.

CBRipoff

A customizable casting bar replacement for TBC Classic & Classic WoW

A simple range indicator for optimizing Halo damage.

Fires events whenever a raid member "fails".

TableTopLib

Automatic ammo reloading and selection, with warnings.

A Library for stat conversion, calculation and summarization.

LDB data source displaying character stats

Displays info about who rolled Need/Greed/Pass on items that are currently rolled for

Draws some lovely 3D portraits in the standard Blizzard artwork.

Scorchio!

GirlFriend

GemCensus inspects people and records which gems they have socketed. Then displays which gems are the most popular.

VendorSearch adds search features when buying items from any vendor

Test whether the player can really dispell a buff or debuff, given its talents.

MoBuffs