WowAce

Piece of mind by being one with your class.

FuBar_CharmsFu

Automatic ammo reloading and selection, with warnings.

MiniChat

Allow rule based automatic rolling on loot.

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

Keeps track of gold and cash flow across multiple characters

Light-weight enhanced casting bars

Swiss Army knife for instances, including player tracking, ignore buttons, loot tracking, notes, and more.

Target assistance by automatic rewriting of macros

Mutes Annoying Sounds

ItemEnchantApplication

Buff reminders and more

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

Quest information

Shows optimal target to use various area healing spells

ImprovedTargetFrame

GearRating

Steroids

Ranged stats Data Broker plugin.