My very first computer was an Apple IIe. I think I was 13 or 14 at the time. I shudder to think what it cost my parents but it gave me a valuable head start in the computing world.
This little Macintosh brings back fond memories. I loved building this. It was fun and fast with interesting elements - the circuit board is removable!
The design is by the brilliant Chris McVeigh (aka Powerpig). You can find a free (thank you, Chris!) pdf guide on his site to build your own. However, unless you have a vast selection of Lego pieces to choose from, I would highly recommend getting one of his kits.
As it was, I had to improvise on a few things.