You want light and flexible action bars ? WonderBar is for you ! The interface is really sexy and intuitive, no knowledge of Lua or XML is requiered, just see your bar like a book with pages. WonderBar don't have a ton of fancy options but designed to provid you the most suitable bars.
• Redirect all actions of a bar to a unit of your choice. (ex : you are a disc priest in arena, you can throw harmful spells of your bar1 to your target and heal your raid1, raid2, raid3 allys with your bar2 without losing your target)
• Switch and scroll your bar instantly between pages by pressing a modifier key. You can change the page of your bar and fire the action in ONE click ! (ex : you can vanish and instantly switch your bar to your stealth bar with the same key)
• Change the geometry of your bar
• Remap stances/shapeshift and specialy obtain a stealth bar in cat