WowAce

Assist you with faction transfers letting you know which mounts, spells, etc you have and what they will be swapped to.

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

Sneakily inspect how much gold your mouseover target has made so far.

FuBar_RicoXPFu

Resizes Blizzard raid frames, and adds additional options.

Fancy up the ExtraActionButton frame

Helps with interrupt notifications and announcements.

TwiCo

Show a bar indicating the unit's Holy Power count.

Stable

Converts incoming ALL CAPS CHAT into lowercase text.

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

Reslack

Cartographer_Stats

Adds tier set number and difficulty indicators to tier item tooltips.

TMrecruit

See all incoming casts on your target. Also includes resurrection monitor. Uses libhealcomm-3.0 and librescomm-1.0

A library to provide a way to easily create controls for Blizzard's options system

EnhancedLFG

agUF style oUF layout