WowAce

Monk Brewmaster/WindWalker Priority and Buff/Debuff Tracking Tool

Provides the ability to suppress specific spellcasts like "Deaden" from your casting bars.

Quality of Life Tools for Group questing/leveling

Manages tracking of raid attendance, loot, and more.

Pet Theory

Adds options to create customized layouts from within grid.

lugMD

Retooled Professions

A clone of the FailBot mod. Announces raid member failures such as "Player1 fails at frogger"

Open all your mail

Lists Pots and Herbs you got on all chars and allows you to specify color coding

FuBar_MiniPerfsFu

Don't underestimate your little critters!

FuBar_tTracker

Provides database of quest giving npcs/mobs/objects for display on the World Map/Minimap

Options for TinyTip

Tracks profession specific cooldowns and items across all your characters

Clean looking square minimap with many options.

ShadowGreenLight helps you decide if recasting SWP/Corruption is worthwhile

ArenaPointer