WowAce

Shows a circle on the minimap to indicate spell range

GonffBar

Group interrupt cooldown tracking.

CharacterInfoStorage

Raid Cooldowns

Gives detailed descriptions of particular localities, as zones or instances, and provides optional TomTom integration.

BananaBar2

cgCrafty

Cartographer_Noteshare

DeclineDuel

A library that handles the basics of "window" style frames

Fixes UI bugs

Keeps track of current money and all your characters on one realm.

NRT_EPGP

Adds on-screen buttons for the farming tools and seeds.

FuBar_NinjutFu

Keeps track of time played and rested XP across your characters.

EnchantList

Friends & Guild Data Broker plugin.

BankAccountant