
An ARM7 based OLED analogue clock face, courtesy of www.youritronics.com
Using an analogue display to show your PC's various statistics seems to be a fairly popular modification right now.
One such example of using an analogue display was carried out by programmer and hobbyist electrician Cristiano Cesaretto. He grabbed a cheap old tachometer, usually used to display a car's engine revs, from eBay and then modded it to display his PC's CPU usage via a USB cable.
Christiano details how he achieved this mod on his blog, and you can find more general instructions over at DIY Life.
[Via Hack A Day]