WowAce

Adds a button to your character and inspect window that shows a summary of gear enchants and gems.

Clean looking square minimap with many options.

xchar

CombatAnnounce

Shows the health of the player's current bodyguard.

wRlog

Leveling guides for trade skill professions.

Buff reminders and more

Loot management tool

Adds a highlight border to items in your MogIt Wishlist, making them easier to see.

FuBar_UIReloadFu

Embeddable chat throttling library with traffic shaping and priorities

Warnings about tanking specific abilities

HealComm-2.0

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

FelwoodFarmer

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

FuBar_MiniClockFu

MultiTips

Speeds up triggering actions such as items or spells by triggering them on key/mouse down rather than release