From CNET.com:
There's no disputing that iTunes boasts an excellent feature set right out of the installation package. However, if you really plan to stretch its powers to the max, you may want to think about downloading a few third-party applications.
Download.com offers a number of iTunes add-ons that add functionality and convenience to this already-great jukebox for the Mac. Here are a few you can check out.
See also
Tips for tweaking iTunes.
