WowAce

Simple and rich Death Knight rune customizations

Mapster's Minimap brother

DotDotDot

Client for MagicDKP which handles standby calls and bidding on items.

Automatically sells low quality gray items and selected white items to the vendor.

mHud

Provides quick notification (sound and visual) of your tanking status of your current target. Meant for tanking.

Shows a circle on the minimap to indicate spell range

Hourglass

rSelfCast

Simple, nice-looking power bar addon for all classes.

RaidInfo

fmBuffCheck

DarkCandy

Reminds you to Life Tap and Dark Pact

Toolset for tanks, providing information on taunts and other valuable information.

Nudge

LibDataBroker plugin showing some random XP related data

Adds on-screen buttons for the farming tools and seeds.

Automatically leaves the global channels when inside an instance/raid and restores them when exited.