Audio Playlist Community Website

Hello! I m looking to create a website that will have users playlist online. Users and visitors can listen other users audios while users only can upload, share and administer playlists. Users can relate between each other like myspace or facebook does, pm each other, post comments, upload avatars and descr about themselves. Website is preffered to use flash and Adobe Flex. Perfect example is [login to view URL] Last but not least since this website is going to have non native english users there is a great need of having the option to change the language that websites uses. This can be done through templates or hard coded from the code itself.