htop is the classic top system status utility on steroids.
KDirStat scans one or more hard drives and produces a detailed map or the disk making space hogs immediately apparent.
A tool which allows you to run any operating system with full-functionality as a window on your desktop
A music library manager, music device manager, and audio player for Windows, Mac OS X and Linux based on Amarok 1.4.
Eagle Mode is an experimental zoomable user interface and file manager.
