WowAce

Saves and restores your action bars.

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

ArenaMaster

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

Interacts with TinyTip modules, either integrated or standalone, to provide extra centralized functionality. Required for an ...

Filters AFK and DND messages after you've seen them once.

Control screenshot format and quality via FuBar

RoleCall allows you to easily see the talent specs and roles of everyone in your group.

FuBar_KillMeterFu

Announces Mage Spells in chat.

Death reports

NameTagToggle

PoisonMenu

GetInLine

Addon to switch all your AceDB profiles via slash command. This tool also allows you to emulate profiles for non AceDB addons.

Quest helping: fetching items to use, that sort of thing.

Toggles player names.

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

Modifies the inbox into a scrollable inbox, including open all options

cgCrafty