Apple released iTunes 8.1 yesterday, with reported updates for performance and stability. Plus, the new iTunes version supports the latest iPod Shuffle.
According to Apple, new features include a new Genius sidebar that supposedly now does TV and move recommendations, speed improvements when importing large libraries, improves speed and handling of iTunes Plus songs and many accessibility improvements.
So it looks like this may be a worthwile updates and I suggest you go ahead and get it. If you already have iTunes on your computer, you can just get the new version over Software Update. If you don’t have it, head over to apple.com/itunes for the free software.