I have three videos on my site highlighting various aspects of Adium, including using Xtras. I also found that Adium has videos themselves. If you are interested in using Adium, some of these may help you as there are a lot of options available for the application.

http://www.livingwithmac.com/software/adium
http://www.adiumx.com/screencasts/

Dan Wassink
http://www.livingwithmac.com