WowAce

Announces results of readychecks to the raid/party, installs "/rc" alias, shows rc timer bar

Improved Guild Control Panel

Automatically and immediately cancels all in-game cinematics and movies

FuBar_KCIFu

BigWigs_HealbotAssist

Shows the price of a single item in the Auction House.

TEALib

Shows more recipies in the profession window.

Adds Buff/Debuff icons to the grid frame.

Repairs your items automatically upon visiting a vendor.

"Your quest log is full". How many quests do you have in your log?

RBM_Config

Enables cooldown notification between players and allows party members access to each-others spell books.

Dock

The ultimate in lazy Ulduar raiding

Simple DataBroker plugin to display current GuildLevel, current GuildXP, max GuildXP & percentage actually earned of daily ca...

Converts incoming ALL CAPS CHAT into lowercase text.

Creates a broker plugin for all your broker launchers

Raid Warning filering module for TweakHub.

Shows a countdown bar for the duration of auras (e.g. HoTs, DoTs)