For October I've colored my desktop with fall colors and the Shiki Human theme. Also made the toolbars transparent. I recently spent time with the Banshee Media Player and found an abundant amount of free music from the Internet Archive already built-in. Very nice to find music for free. I've also upgraded 4 of my 6 machines to Ubuntu 11.04 via a clean install, now that it has been out a while, and version 11.10 was released yesterday. Below are the screen shots and a link how to make the toolbars transparent.
Without the Avant launcher...
Below is the Banshee Music Player
Below is the Gmusicbrowser media player, with the iTunes view
Link how to make toolbars transparent: