http://www.6thplanet.com/ deals with a large range of unusual or rare items of hardware
Found here......
A brilliant car/PC/home MP3 system - up to 60Gb HDD storage.
A fully-populated dual P-Pro200 motherboard, including SCSI, cables, network, RAM and matched CPUs (would make a nice NT or Linux server - Win9x can't cope with more than 1 CPU) - just needs storage devices and a decent case (with a jet-sized fan - those CPUs only have passive sinks on them).
A range of Dell overstock servers, laptops and desktops.