When my previous computer died 10 days ago, it had very few WP documents and only a slightly larger number of spreadsheets, and most of those were backed up on a flash drive. Ditto for my website code and my pictures folders (okay, I lost most of the photos taken in 2007 from the hard drive, but I still have many of those on the camera’s memory card and/or on Flickr).
What I didn’t have backed up was my iTunes library. Fortunately, the music I’ve purchased through the iTunes store was burned to CD immediately after I downloaded it; the other 1,500 songs were copied from CDs I own, so the rebuilding of the library just took a few hours re-doing that process.
Back up your iTunes library, people.