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.