Ubuntu Geek posted a tutorial about installing Cairo Dock in Ubuntu 10.10
About Cairo Dock It uses Cairo / OpenGL to render graphics (many in correlation with Compiz) with full hardware acceleration. It's fully configurable and fully customisable and can be used as a taskbar too. You can easily add applets in the dock or as a desklet. It is recommended to install the PLUG-INS package (cairo-dock-plug-ins)How to install Cairo Dock in Ubuntu 10.10 (Maverick)