WowAce

Target Debuff monitor. Stacking aware, giving current and potential debuff status.

Adds mob patrol paths to your map.

An extension to the default WoW Unit Frames.

Show item durability and quality in the character frame.

A collection of Rogue modules.

Bayi's Extended Questlog

Achievements

Libra

Try on different gear and see their total stats and their differences. In short, an ingame CT-Profiles-like addon.

Cleans up minimap buttons and makes them accessible through a pop out menu!

AutoMagicly clicks though Daily Quests, and Turns them In.

Assessment

Display aura information inside action buttons

Keeps track of quests.

PvE Status Frames

Switch macro depending on zones or BigWigs boss modules.

Tracks the Blood Shield for Death Knights.

Violation

A blizzard group finder replacement

Display auras on action buttons.