WowAce

Scans your Equipment for cumulative item bonuses and sums them up.

MobHealth

adds navigation buttons to Encounter Journal

Watch tooltip updates to announce when you find specific objects

Allows customisation of login/logout system messages.

Adds a highlight border to items in your MogIt Wishlist, making them easier to see.

SmartyCatManaBar

Adds two icon indicators to each corner (total: 8 icon indicators).

OneBag is a replacement for the default game bags that combines all the bags into one frame.

LibRock-1.0

Scorchio!

Resizes some default UI frames (GuildUI, LootFrame, RaidInfo, TradeSkillUI and TrainerUI) to show more lines

Uses guild notes to add alts' main names to chat windows and other places

Shows activity for hidden ChatFrames by making their tabs flash.

A library to help with localization of classes.

Buffalo2

Displays the zone level ranage of the zone you are in and also gives you a suggest zone and instances to be in.

Hook extra menu to friend list, guild list and chat player

Show coordinates on minimap

BeneCast 10