This gadget shows the daily top 25 selling songs on iTunes.

 
This simple little gadget allows you the control of tracks in iTunes. Current track information is also displayed within the gadget.

 
This iTunes gadget shows the current title, artist, album, and artwork (if available) of the current played song. Includes current time, previous, play/pause, and next buttons.

With this IMDb gadget search on the internet movie data base directly from the windows vista sidebar.