Hard Drive Management software?

[mospeada02]

What is the program that lists and shows all the different files from the hard drive in a pie chart and the type that takes up the whole drive?

 

[ergdegdeg]

I'M not sure about the pie chart, but a rectangular chart might do as well?
Disk Inventory X

 

[~Shard~]

WhatSize is also a good tool for determining what is taking up space on your drive and where it is.