Hope someone can help me on this. Looking for a shopping cart that can do this. Customer sends me for example two pictures that they want edited. I finish editing the photos then I go to the shopping cart and add them as a customer. I upload the pictures to the customers shopping cart account and the shopping cart sends them a message that their items are ready to purchase. They go to the shopping cart, sign in and buy the modified pictures using PayPal or Google checkout and then they receive a download link so they can get their pictures. Does anyone know if there's a shopping cart that does this? Maybe an invoice script that has digital download after payment? I've looked all over for a shopping cart like this with no luck. I appreciate any leads, Thanks