I am looking for some sort of shopping cart CMS wheres users can upload digital goods, set there price. Once bought, I would get a % of the purchased product and the rest would be sent to them. THe digital good should be able to be emailed to them.
I don't of any open source software that can do that. You could always go to guru.com and put up a free ad for some one to make you a custom shopping cart software. You'll have 100 qualified Indians/Malaysians/Indonesians offering to do it for under $40, within 2 days. (I've used it multiple times) Good luck!