I am starting a business that will sell ringtones. I have a large web space available and will design the site and create the mobile content but I need someone to handle the server side of the project. It would need to store mobile content files and deliver them to wireless devices after processing a payment from the customer. I also need a code generator that could create shopping carts to be inserted into several web sites. I would need some level of administrative access to the database in order to periodically upload new content.
Please provide a link demonstrating previous work done in this field.