LazyLion
King of de Jungle
http://blogs.howtogeek.com/tuxgeek/2008/09/08/pimp-your-gnome-in-7-steps/
Let's face it, the default theme on current Ubuntu releases is more aimed at the (boring) business folks: no transparency, no effects, no shiny icons and cool wallpapers.
That's why I'm going to walk you through some easy steps to customize your Ubuntu Gnome - for better usability and better looks (to impress your windows buddies?).