I’m digging Dan Humpherson’s (@moodledan) EduMoodle theme for Moodle 2.0 more and more as I see it’s customization interface. Check out these two videos that highlight you can both easily change the color theme to fit your needs and change the logo.
Vote for the theme: http://newschoollearning.com/theme/submissions/
Change the color scheme: http://vl3.co.uk/player/edumoodle.html
Change the logo: http://vl3.co.uk/player/edumoodlelogo.html
Download the theme: http://newschoollearning.com/theme/submissions/edumoodle/
See the theme in action: http://www.newschoollearning.com/moodle2/?&theme=edumoodle