The Osborne 1 might be a huge lumbering beast by today's standards, but, when it was released back in 1981, it was the first truly successful portable computer. It did after all sport a whole (tiny) monitor, a proper keyboard, disk drives and more than a few lovely switches, while weighing less than 12kg / 25 pounds. Impressive, eh? And did you know the thing was running on CP/M while providing with a pretty impressive suit of built-in software? Of course you did dears.
Happily you can bid on this Osborne 1 on eBay and hope for the best. Seller ships only within the US (it's not a stinkin' notebook you know) and will apparently be including quite a lot of software as well as games with it. Mind you, the computer comes with two disc drives and works properly.