Dynamically generated downloadable products

[MrBaseball34]

We need to be able to have a downloadable product that can be dynamically generated.
Has anyone ever run across this type of thing and how is it done?

Here are my thoughts:
1. Customer places order for product.
2. When order is finalized, a function to create the product is called.
3. The function generates a unique filename and email's the customer when the product is ready
to be downloaded.

The problem lies in the fact that when you select a product as downloadable, it REQUIRES a filename.

How/where would I circumvent the filename used in the product table and the system sending the
email to the user about the product being ready to download, especially with the filename used in
theproduct setup?

Does anyone else have any comments on the process I mentioned above?