OnDeck displays album Artwork for the currently playing iTunes album, can upload the artwork and track information to an FTP or web server and provides a sleep timer. OnDeck now displays both embedded artwork and image files that are saved in the same album folders as your music files.
The emphasis of this program is on elegant functionality:
Fast updates with minimal CPU usage (barely one tenth of a second of CPU time per track). Displays album artwork from iTunes or your hard disk, in a neat semi-opaque window, with a fullscreen mode. Customisable track information display and Growl notifications (great with the Music Video display), including artwork, rating, genre, comments and other Tags. Upload album artwork and track information to a website (by FTP, HTTP, local file copy and Last.fm). Includes a sleep timer and can also speak track information.