Decades of professional system/software engineering and lots of real-time/embedded work have provided great background to various personal projects over the years.
Now, armed with the Eagle schematic/layout tool and with some really cheap printed circuit board fabricators, I'm executing projects in etch rather than wirewrap. The navigation links to the left go to various categories of projects, some of which have the design files posted for use by others.
For the Eagle software: http://www.cadsoftusa.com (operates on Windows, Linux, and Mac). There is a Light, Standard, and Professional edition. The Light edition is limited to a single schematic sheet and a maximum PCB size of 3.2 x 4 inches. If you want freeware for non-commercial use, download the light edition and select Run as Freeware when first operating (the freeware option is not obvious on the website).
For small size, small quantity printed circuit board fabricators (2 layers with silk screen both sides):
Embedded microprocessor tools:
U.S. parts vendors for personal projects: (web presence, good technical info, will take small orders from individuals, regular industrial distributorships)
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