Rick Mack of Volante Systems pointed out to me this very cool FREE utility to graphically map your hard disk so that you can see what files are taking up the most disk space. The utility uses a screen of squares that vary in size depending on the file size so that you can instantly find the files on your drive that are taking up the most space. The wow factor aside this would be immensely useful on your users file storage server to weed out which users are abusing your storage per se.
Here is the info:
SequoiaView was developed by the computer science department of the Technische Universiteit Eindhoven and can be downloaded for free. It is a very small download, only 500 k in size and scans your disk very quickly!
SequoiaView uses a visualization technique called cushion treemaps to provide you with a single picture of the entire contents of your hard drive. You can use it to locate those large files that you haven't accessed in one year, or to quickly locate the largest picture files on your drive.
Sample screen the larger the box...the larger the file!
More information and Download the file from: