Did it!
I have a few hard drives knocking around the office desk, so I got out the Canon MP-E 65mm macro lens.
This lens allows shots up to 5 times life size (normal macro lenses are only 1 x life size).
This shot is about 5x real life size and shows an area of probably around half a centimetre of the hard drive circuit board.
It was lit with a remote flash.
