351561 music sales site

my client needs a site to sell his music from. he wants to be able to upload 30 sec mp3 clips for the buyer to review and upon purchase, he wants them to be able to download the full file. This is programmed in php preferably unless you know of an easier way. It will require a database, a folder to upload music clips and an ftp link to upload the large files to a seperate folder. this will also be a part of a CMS site which i believe is created using joomla.