WowAce

Allows you to loot BoP items without prompting when not in a group or raid

Opacity effect on action buttons in cooldown.

Out of Mana bar.

Gnomish math at its best!

Automatically converts a party to a raid when you attempt to zone into a raid zone without a raid.

All Flight Masters, flight duration and more.

Allows raid leaders to view information on raid or guild member equipment information

Control screenshot format and quality via FuBar

Fancy up the PlayerPowerBarAlt frame

A customizable buff/debuff display replacement for the default Blizzard frames (with right click cancelaura support).

Remaining and rested XP Data Broker plugin.

A raid buff tracker

Simple money display for LDB

Reports in the Default Chat Frame how many people does not have Well Fed effect, and who are they

Adds aggro coloring to oUF.

The ultimate in lazy Ulduar raiding

ArenaHistory

Customize the appearance of the chat bubbles.

Converts commonly used acronyms into hyperlinks.

Makes the message dialog movable