My hard disk space

I got a prompt from my laptop that I am running out of disk space. My God...Wondering what stored inside until my 120GB Harddisk full?

When surfing the Internet, read an article from Darien, Microsoft Malaysia. He shared a tool from his blog - WinDirStat

http://blogs.msdn.com/darien/archive/2008/05/25/where-s-my-hard-disk-space-gone.aspx

Its awesome and now, I know what is the type of files fill up my disk.

Once, thanks to Darien, and for sure, thanks to BLOG.