Obsidian Adium Theme
For a good look with Obsidian Menubar: [link]
Status Icons "Candyball": [link]
Unzip the archive, double click on both files and open the settings of Adium. Than change the contact list to "Obsidian". Finished.
For a better look move the Adium window a little bit to left with pressed Shift-Key, so you don't see the round corners on the left side.
Preview of the whole desktop:[link]