Is there a free, lightweight app that can tell me what folders are using up my space?

[seenew]

I know the single biggest culprit (Aperture), but I want to do some cleaning. Is there something built into OS X that can help me find the largest files/folders, or is there a simple app I can download?

Thanks in advance!

 

[Eidorian]

Disk Inventory X

 

[juanster]

grandperspective, imo is a bit better than disk inventory x, but they will both do what you need and they are both free, good luck Seenew...

http://grandperspectiv.sourceforge.net/#download

 

[ChrisN]

Disk Inventory X

+1 for Disk Inventory X, good app

ChrisN

 

[seenew]

+1 for Disk Inventory X, good app

ChrisN

thanks everyone.

(PS: my name is also Chris N. )