I'm looking for suggestions for a script to sell other scripts on a website. I have tried a couple, the first was not totally automated in that I had to manually send a link to the download once I had verified payment, the second is automated but has a few errors, isn't nearly as simple, and makes people sign up for an account before they can buy. I would like to find something simple and that automaticaly sends a download link to the customer as soon as the transaction is complete.

I would also like to find something that takes data directly from a MySQL database and spits out an RSS feed.

Any suggestions?

Thanks.