Me, I had the far less expensive (and far less fancy but still quite educational) Radio Shack Microcomputer Trainer. Teeny all-in-one chip with 256 4-bit bytes RAM and enough ROM to house a few built-in programs and a method to tie together 8 LEDs, a 7-segment display and a keypad. My father was nice enough not to throw out this golden oldie, like he did my Star Wars action figures, and has actually agreed to ship it to me. (Yay Dad!) I'd recommend Computer Garage's pictures from the Vintage Computer Festival Sept. 1998 if it weren't so terribly slow to load, but the Garage itself is excellent. See also the related web ring.