Oddly enough, I still have the Hardy Heron wallpaper on my current Debian Wheezy xfce4 based desktop.

CentOS 5.9 is a close analogue and CentOS 6.4 can be themed appropriately.

Interface Design Reflection: Go and watch a string quartet playing. Reflect on the 'usability' of a couple of violins, a viola and a cello. Heidegger may have had a point.