Selling fonts?

I was wondering if anyone has ever “sold” their fonts to another company or sold the licensing to anyone else? I’ve recently designed some fonts for a company that wants to manufacter a font cd from their company. So basically, my work becomes theirs. Am I making any sense? I don’t know how much to charge or how to go about this. Any suggestions? Any help?

These links might help:
Commercial & Custom Pricing
Type design work pricing & timing…
Foundry as business: What would you ask if you could?