Just in case anyone is interested, I've just listed a load of PDP-11 handbooks on eBay. They're all on starting at 4.99. You can find them here: http://www.ebay.co.uk/sch/murkles/m.html?_nkw=&_armrs=1&_from=&… There's also a Cambridge Z88, SPARCbook 3 and Epson HX-20. Regards, Mark.