WowAce

Numerical and graphical display of Combo Points and similar buffs/debuffs. Also tracks Holy Power and Soul Shards.

Simple, nice-looking power bar addon for all classes.

Alternate Power- and Combopoint/SoulShard/HolyPower-bar

Displays reagent count on spell action buttons

Track all threat redirection ability transfers and cooldowns (Misdirection and Tricks of the Trade).

PowerBar

Hemlock

A collection of Rogue modules.

TrickOrTreat

Holy Power, Shadow Orbs, Rogue Combo Points and Monk Chi.

LD50_abar

Open those pesky lockboxes

Comergy 2

PoisonSwapper automatically manages weapon swapping for maximum DPS

Melee stats Data Broker plugin.

Highlights the action bar spells that need to be kept on target or player

FuBar_NinjutFu

NinjaPoints

EnvenomX

GonffBar