WowAce

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

Keeps track of durability and pops up a dialog to repair when you go to a vendor who can.

Ironi's Encounter Event Tracker

RaidHelper

Shows a nice Soulstone Monitor.

Library supporting plug in filters.

Raid Cooldowns

Complain about crowd control breaks.

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

Poppins

Ghost: Pulse

LilSparky's Workshop mod for Trade Skills

Instant PROC notification

A full package of auras for all 3 Shaman specializations

Configuration for LibToast notifications.

Open all your mail

A library to return spell duration and debuff type of a spellID.

TGuildFrame

Loot management tool

Shows your standings with the factions.