DIY Computers

Don't wimp out. Build your own computer instead. Here are some external sites to get you started.

Applix Manuals: I figure you really only get to know about a computer when you both build it and program it yourself. The Applix ETI/1616 is a general purpose homebrew Motorola 68000 computer designed by Andrew Morton. I built a few of them while tidying and prettying the manuals, and I still like them a lot. I'll add software to the site when I get some time.
Lakeview Research Jan Axelson: Excellent introductory book on building 8052 style controller. Good hardware notes, plus assembler examples.
Don McKenzie micros: Z80 and PIC micros, ingenious designs. Good site for Australians.