>>
>>Here are my questions: Can I ethically charge them a fee for my source code, even though it was a >custom system I built for them?
>
>If in your contract, you specifically stated that you retained rights to the source, I don't see why not.
>
>
>>If so, is there a standard method for determining what to charge for source code? I want to do the >right thing here.
>
>That's extremely difficult to do. Perhaps it is time to consult a lawyer and show the company that you are a serious individual. I would not go into this on my own!

At one place I had worked for, their stance on source code was that if you wanted it, you could buy the company. They'd even throw in the furniture. < g >