Today only, the Amazon MP3 Store offers downloads of Foo Fighters's Greatest Hits MP3 Album for $3.99. That's the lowest price we could find for this 17-track, DRM-free album, which was originally released in 2009. (iTunes charges $11.99). Amazon MP3 Downloader is required.

This album qualifies for 20GB of online storage for free via the new Amazon Cloud Drive.