WowAce

DotDotDot

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

ShadowGreenLight helps you decide if recasting SWP/Corruption is worthwhile

Quixote

Doodle

Heads Up Display with Player and Target Info

Show extra information about Jewels and Enchants in tooltips.

Desesperated announcing to clearly show the skillings of act inplay.

Broker plugin to display player orientation

GetInLine

Separate indicator for your HoTs with timer.

Tracks whispers and conversations

MainAssist

Adds Scrolling Combat Text above your character

Scorchio!

Enables user defined sounds for Party, Guild, Raid and Custom Channel chat messages.

Provides the /in command for delayed execution.

GemCensus inspects people and records which gems they have socketed. Then displays which gems are the most popular.

SupplyAndDemand

Nvp