You can try them from
http://www.kiba-dock.org/
https://launchpad.net/awn
Here is a tutorial to setup kiba-dock in Ubuntu
http://ubuntuforums.org/showthread.php?t=268645
Here is a tutorial to setup awn
http://wiki.awn-project.org/Installation
While Kiba dock focuses on launchers, AWN supports both launchers and task list.
While both of the provide you with fancy desktop, they requires composite( like copiz fusion) to be enabled. So be aware if you have some old system.
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