WowAce

OneBag is a replacement for the default game bags that combines all the bags into one frame.

The Talent Template Editor

Track time played, rested XP and money for all characters

Archaeology Assistant

Dynamic mount macro generator

Show buffs on nameplates.

Marks the locations of Hallow's End candy buckets on the worldmap and minimap.

Display aura information inside action buttons

Watches your chat, flagging missplled words, and offering correctly spelled suggestions.

Provides one or many informational windows with optional interactive widgets.

Database of Diminishing return categories and general data

Redirect character errors, system messages and information messages.

Rebuff yourself with the mousewheel.

Displays Instance Maps

Show the appearance of an item when you mouse over it

Checks Raid Buffs/Flasks/Consumables. Tunable alerts for misdirects, taunts, cc breakage, rez, dispel and interrupt

Am I locked out? - Displays all RaidIDs for all chars

Sells all junk in your inventory at once.

Alternate Power- and Combopoint/SoulShard/HolyPower-bar

Unit frame addon using Ace3.