WowAce

Bidder for DKP points. Usable as standalone bidder, or with DKP - Manager to manage points.

Provides more visible access to dungeon and raid difficulty settings via FuBar.

wRlog

A mod to filter the Trade chat, shunting it to a seperate chat window if it exists (chat window is OMGWTFBBQ).

Mutes Annoying Sounds

A simple addon that warns you if your pet isn't attacking while you're in combat.

FuBar_RaidBuffFu

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

Automatic tracking of the current target's creature type. For the discerning PvE hunter.

Keeps track of healing spells cast by everyone in a group.

GemList

Cartographer_Fishing

Buff reminders and more

Raid level alternative player power warning (Atramedes, Cho'gall, Lord Rhyolith)

Makes tracking reputation much simpler. By InSo(v)nIaX

It's a doodle pad for doodling with doodles.

Ranged stats Data Broker plugin.

Sneakily inspect how much gold your mouseover target has made so far.

GridLayoutPlus

Simple display and management of Away / AFK / Busy / DND status via broker or minimap