I do not know which technologoes to use for this project, and therefore will let you decide what is best.
What I need is a web-based service that allows registered and paid members to remotely access the contents of their hard drive. Of course, there will need to be an application installed on the user's home computer, which could be Java or C/C++. Then, from any computer with an internet connection, the user will be able to view the contents of specific folders on their hard drive, and download files to the computer they are using. Members who pay for a more expensive membership will be able to stream their MP3 music over the internet connection, and browse thumbnails of their digital photos. There will be many other features, but this is the basic idea.
The most important priorities are credit card processing (might be through a third party such as PayPal), high level of security, and the ability to stream music. The interface will need to be very easy to understand, and those who use the more expensive membership will have a more advanced interface with music streaming controls, and photo browser.
I also need a powerful admin system to control all aspects of membership, and be able to edit the interface as needed. I can design the graphics and HTML, I just need you to do the coding and tell me how to install it.
Please provide thoughts and questions, and show me some of your previous work on the message board.