>>Check with a guy named Jan Mayle from a firm called Tips. I believe he may still be affiliated with the SIA (Securities Industry Association) in New York. You can reach the SIA at (212)608-1500. Jan is the author of SIA's book, Standard Securities Calculation Methods. I spoke with Jan several years ago and, though my memory is very sketchy, I believe we discussed him making the stuff available as Foxpro libraries.
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>Could I drop your name as a point of reference when talking to Jan (is it "Yon"?)
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No problem. It's "JAN".

Tech Hackers has been one of the only analytic providers I can think of that really seems to have a clue. The pricing issue may depend on their concern about how you're going to use and distribute their stuff. Also, as the company has grown up, they've learned to get well-capitalized banks and financial institutions to pay them gobs of money for their services -- so they may be wanting to see how much you've got.