BetterBlizzOptions Antiarc

Makes the Blizzard options frame movable and resizable.
Curse

BlizzMove yess

Simple addon that makes the Blizzard windows movable. To move a window just click title of the window and drag it to where you want it. You can also use control+scroll wheel over the title of a window to adjust the scale. The positions and scale will be saved only for the full screen windows such as the achievement window.
Curse

ChaosFrameModifier ChaosInc

This allows for full customization of almost any frame within the game.
WoWInterface, Curse

DragEmAll emelio

Simple and lightweight addon that allows you to move most default frames, such as the inbox, character window or the achievements window, anywhere you want. The frame positions are not saved.
WoWInterface, Curse

FluidFrames AnduinLothar, Dridzt

Move, hide, scale, and resize frames with independent x&y axes.
WoWInterface

FramesResized Elkano

This addon will resize the following frames and will also make them moveable: CraftUI added 8 additional lines of items, LootFrame resizes to 8 items when needed, QuestLog added 8 additional lines of quests, TradeSkillUI added 8 additional lines of items, TrainerUI added 8 additional lines of skills.
WoWInterface, Curse

HideBlizzard Gendr

Allows you to hide default Blizzard UI items including: Bag Bar, Gryphons, Keyring Button, Main Action Bar, Micro Menu Bar, Rep Bar, XP Bar, Chat buttons, Minimap buttons (not custom), Party Unit Frames, Pet Action Bar, Pet Cast Bar, Pet Frame, Armored Man, Aura Frame, Player Cast Bar, Player Unit Frame, Rune Frame, Shapeshift Frame, Combo Point Frame, Focus Frame, Target Cast Bar, Target Unit Frame.
WoWInterface, Curse

Kong Automatic UI Hider xentaros

Can fade out elements of the user interface (Minimap, PlayerFrame, Recount, etc.) and then automatically show them again when moused-over, entering combat, or any of several other user-specified conditions are met.
WoWInterface, Curse
WoW Insider Review

Leatrix Frames Leatrix

Simple addon designed to make it easy for you to move key frames within your UI. It uses drag and drop and has vehicle monitoring built-in for automatic repositioning of the player frame when entering/exiting a vehicle. Frames that can be moved: Player, Target, Pet, Cast Bar, Minimap, Durability, Vehicle, World Status & Ticket Status.
WoWInterface

MoveAnything Wagthaa

Lets you move, scale, and hide anything.
WoWInterface, Curse

PartyHide StoffeTiX

Hides Blizzard's party frames.
WoWInterface

RaidHide StoffeTiX

Hides Blizzard's raid frames.
WoWInterface

SmartFrameMover Aeldra

Displays a movable frame to overwrite the default frame position of various frames. For example: Vehicle seat indicator frame, Boss target frames, Minimap, Quest Watch, Raid Mechanic, Durability Doll, many more.
WoWInterface, Curse

 
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