Michael and I cracked out the ISO 10664 (that would be TORX) screwdrivers, and opened up one of the hard disk drives in the 'bad disks' stack. He was after the cool magnets, and I just wanted to finally pull a disk apart.
These are the four read/write heads from a Western Digital 120GB disk. The thing that struck me most about the internals of the disk was the simplicity of everything within the sealed enclosure — for reliability, the bare minimum needed to make things work.
Details: Nikon 105mm 1:2.8 macro, ~f/8, 1/125s, ISO 200, SB-800 flash.