Well, you really can't get away from writing about systems you want, since you couldn't claim they're hard to find unless you've been looking. ;) That said, here I go... S-100 based CP/M machines seem to be very rare where I am. MVME-bus machines of any type have been difficult for me to locate. Acorn Archimedes systems are difficult, too, I assume because they were never really popular in the US. NeXT hardware of any type has been difficult for me to locate as well, especially recently. It seems that everybody would like to have it and there's not enough surplus left. Amiga systems are generally in the same boat as NeXT. Once in a while you find somebody who'll actually part with an Amiga, but it's rare. Most people still use them. I've never met a scrap AS/400 in person, though some of them show up on eBay once in a while, so I don't know if this will count. I've been looking for a TRS-80 Color Computer 3 setup for a very long time and haven't found one yet. I assume those are mostly just setting in peoples' closets and will appear in scrapyards and yard-sales eventually. Do peripherals count too? If so, try finding a 9-track drive that doesn't take up as much room as your fridge. Any EDSI hardware and controllers have been very elusive to me as well. Machines with front-panels are very rare. I have one, a Heath H-8. (You can select an address using the keypad and type programs in octal -- talk about an intuitive interface! I think we should replace the GUI with this... :) It's the only one I've ever met, honestly. (Speaking of which, I must eventually get it to do something interesting. :) I remember from old "Hot CoCo" magazines a few systems, namely the Dragon, and the "Micro Color Computer," which I have not seen since. It is difficult for me to find people who've even heard of, much less seen, much less know where I can get, a Symbolics system. The same applies to any of the Cray systems -- even when they were made in relatively high-volume. The SGI m68k machines are also relatively "unknown." (The Iris 2000/3000s) I'm sure there are more. Regards, Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '