Hi Ben,

I do exactly as you talk about with a program called WinBoard from Ivex. You can download a demo copy from there site that has a 100 pin capacity. Just call them up with credit card and get 200 pins for about $30. The program also has a schematic program with it as well.

www.Ivex.com is the website.

TTYL,
Dave Kaleta

P.S. I have a single sided 8052 development board made from it. It has a 40 pin connector to connect memory and I/O devices to it.