GrandPerspective is a small utility for Mac OS X that can draw two-dimensional views of disk usage within a file system. This can help you to manage your disk, as you can easily spot which files and folders take up the most space.
GrandPerspective Version 0.9.10 has just been released. Newly added is the ability to select folders in the view. Furthermore, the view can now also display the entire volume (including free space). The Info panel has also been pimped. It looks better and contains a bit more info. There are also a few extra color palettes to choose from. Finally, the source code itself has undergone more refactoring and has become even leaner and meaner.
The new release is available at http://sourceforge.net/project/showfiles.php?group_id=148156. More information about GrandPerspective can be found at the project's homepage: http://grandperspectiv.sourceforge.net/.