iTunes Controller is an award winning application that is claiming to be the ultimate iTunes upgrade.
It has some innovative functions and features that iTunes just can dream for.
It has mini player that greatly replace the iTunes' one. The mini player has a great visualization and supports customizable transparency.
There is one more mini bar player in case you need more space on your desktop but still want to be in touch with your music any time.
Both players follows you on all spaces (desktops) so you don't need to switch the desktop to reach your music.
Don't need any players on your desktop? No problem! The drop down menu at the menu bar handles the whole functionality of the players.
iTunes is now just a playlist.