WowAce

A simple combat log that displays events similar to SCT

Incubator

Tracks the HoTs you cast.

Questing minion

Checks Raid Buffs/Flasks/Consumables. Tunable alerts for misdirects, taunts, cc breakage, rez, dispel and interrupt

Alternate Power- and Combopoint/SoulShard/HolyPower-bar

Custom widgets for AceGUI-3.0 and AceConfigDialog-3.0.

Prat

Tracks herbs/ore/items that can be broken into component pieces

Display aura information inside action buttons

Adds a status to Grid for debuffs applied by Raid Bosses.

Reports in raid chat whenever a raid member "fails." /EnsidiaFails to configure.

Co-ordinated targetless Party and Raid wipe recovery. Evolved

Shows simple Buttons for your Cooldowns :)

Raid Frames using the oUF framework.

From bags we came, to bank we return

Show buffs on nameplates.

Checks your gear before bosses and yells at you if you're an idiot

Manufac

Keeps track of HoTs, DoTs, Buffs and Cooldowns. With audio and text alerts to refresh them.