Thanks for the compliment Jonathan . I think you would be surprised how easy to maintain it is after the initial time investment. I simply have a jpg file for each model of server (Luckily we are 99% Fujitsu Servers. So once you have google'd and copied the pics for each model. It becomes a simple matter of drag and drop onto the cab afterwards.
Did you come up with one in the end, I'd be interested in the results.