WowAce

Allows combined aura detection. motw + gotw, all 4 mage int buffs, etc. in one status.

Show a texture on demand

Quickly assign the highest follower to each building or unassign all of them.

RootsBidder

MendWatch

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

Keeps track of gold and cash flow across multiple characters

Add in keybindings to place raid marks on mouseover, or the target if there is no unit being moused over

FuBar_TrainerFu

Gives a score for your kit allowing easy comparison with others, also colour codes kit based on appropriateness for your level.

VendorSearch adds search features when buying items from any vendor

Sniff

Draws some lovely 3D portraits in the standard Blizzard artwork.

Track of your tradeskills across characters, create small buttons for them and track cooldowns.

Praise the Sun! \[T]/

KC_Items

AnchorsAway

Plays amusing sounds whenever you skin a mob

Building a Better Mailbox

BananaBar2