One of my essential iTunes helper apps is TuneSpan, which lets you split your media drive across multiple drives. If you have a large library, TuneSpan lets you choose to put, say, your music on one drive, and your movies and TV shows on another. You can read this article to learn more about TuneSpan.
This week, TuneSpan is on sale for only $1.99. If you have a large iTunes library, you shouldn’t even think twice; at this price, grab it now. You’ll thank me.