WinDirStat is a piece of free software available from WinDirStat home page. It stands for Windows Directory Statistics according to the web site. What it does is show you how much space each folder on your computer is taking up.

It is helpful when you need to clean up! It is my free software pick of August 2006.
I even got some screen prints! Click on more.

This one shows it scanning your drives.

I don't know if the image of your files is useful. It is pretty cool looking.