alweb

Hello! I’d like to create a site for users to be able to register then be able to post a video with description and then be able to sell their own videos with a download link once the payment was made to the user. I know it is a lot to ask for but I’d like to be pointed in the right directions, what commercial or free 3rd party php programs could I use or any CMS extensions / plug-ins might work for me. Thank you in advance.