Playlist.com
All you have to do is signup and you can make a playlist with up to 100 songs, and create as many playlists as you want, here is a playlist I just made:
http://www.greatprofilemusic.com/mc/mp3player.swf?tomy=http://www.greatprofilemusic.com/mc/config/config_black.xml&mywidth=435&myheight=270&file=htt p://www.greatprofilemusic.com/loadplaylist.php?playlist=30803266
