Bartender3

Bartender3 is an Ace2 AddOn to provide more flexibility and functionality to the Action Buttons.
It is NOT based on Bartender2, but a total rewrite.
Although the functionality is basically the same, Bartender3 was explicitly designed for WoW 2.0

The current version of Bartender3 supports nearly all Features Bartender2 offered, plus some more, which include:

- Full style control ( Alpha / Scale / Padding )
- Split up Bars into Rows
- Set the number of buttons per bar ( only 1 - 12 supported, for short bars )
- Dynamic Page Swapping for Stances ( on all Bars, by default enabled on Bar1 )
- Dynamic Page Swapping on Modifier Down ( Shift / Ctrl / Alt )
- Custom Styles included: Zoomed Buttons ( Hide Border from BT2 ), Dreamlayout
- Integrated RedRange and full support for Cooldown Count
- Self Casting using a modifier key, or Right Click on the button

You might also want to check the Bartender3 thread on the WoWAce Forums for more help.
http://www.wowace.com/forums/index.php?topic=3110.0

Note:

If your settings seem to have reset after the last update, go into the Options -> Profile and Choose Default again, or alternatively, copy your settings from Default using the "Copy" option.

Bartender3 Version History:
3.1.4:

- Updated for World of Warcraft Client Patch 2.4.0
- Added support for the Possess Bar
- Improved the way the frame overlays work in unlocked mode
- Fixed Hide/Show of Bars in unlocked mode
- Small Performance Tweaks

3.1.3:

- Updated for World of Warcraft Client Patch 2.3.2
- Add support for moving/scaling the Roll Bar
- Improved StickyFrames support by allowing Bars to snap to UIParent and WorldFrame
- Alot of Fixes and Tweaks

3.1.2:

- Full support and optimizations for World of Warcraft Client Patch 2.2
- Added support for showing the default Reputation Bar
- Added an option to change the color of range and mana indicators
- Added an option to disable button tooltips while in combat
- Added an option to hide bars based on your stance
- Added options to the special bars to disable them completely
- Improved the out of range indicator in "Hotkey" mode
- Improved the stance handler, it will now pickup stances instantly when you learn them
- The "Re-use Buttons" feature has been removed again, due to some serious bugs
- Simplified the default settings
- Internal structure changes - split alot of code into seperate files