WowAce

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

Displays Pet Info for Hunters and Warlocks. Also keeps track of Stables and Pet and Demon skills.

A small checklist for raid (de)buffs and who brings what.

LittleTrouble

Aspect checker addon for Hunters.

TrackingBar

Information display for Hunters.

AspectsBar

TrapBar

HunterAEP

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

BigTrouble

Nudge

Keep your pet fed

lugMD

Automatic ammo reloading and selection, with warnings.

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

A seperate focus bar, with focus gain prediction and rotation forecast.

PetBar

SEasyRotation