WowAce

Stores a browsable database of spells that mobs cast

TouristLib

FuBar_MicroMenuFu

LDB display of currencies, gold totals and session / daily / weekly statistics for all characters on a server.

Fires events whenever a raid member "fails."

Heads-up minimap display

RaidInfo

Considers an item against all the items you have to determine whether or not it is an upgrade

Building a Better Mailbox

NameTagToggle

Mutt (Macro Update Target Tool) provides slash-commands that can patch the predefined targets in your macros.

Review any raid or party members recent incoming combat along with health level.

Database sharing module for GatherMate2

ItemValue

mHud

LittleTrouble

Gathers statistics on certain chance-on-use spells, also known as procs.

Monitors for friendly deaths and announces them as in Myth: The Fallen Lords

MountUp

BarAnnounce3