Hard drive space missing

[theposse]

I have an 80gb imac g5 and can't seem to find what is using all my hard drive space.
I have about 14gbs of music and the same in photos,5 videos each of which are 700mb.
Yet my computer says i have no space ,so whats using it ?
Is there a program i could use to see where the big files are on my computer and then delete them.
Any help would be greatly appreciated.
Scott

 

[BlueRevolution]

Try OmniDiskSweeper. Just don't delete anything if you don't know what it is.