GimmeSomeTune is an iTunes controller with power.
Here's an excerpt of the features it offers:
- Automatic Artwork fetching
- Automatic Lyrics fetching
- Last.fm (scrobbling) support
- Hotkeys for controlling nearly every aspect of iTunes
- Apple Remote Control support
- Info-window
- Lyrics window (with editing capabilities)
A full list of features can be found on the product's website.
GimmeSomeTune is freeware, but the author greatly appreciates donations.