[dba-Tech] Can anybody reccommend a disk space analyser for W2K8 64 Bit

Hello All,

Can anybody reccommend a disk space analyser for W2K8 64 Bit?

I have an older program that but is slow and I am not sure it is the right
tool for the job.

I want a neat, pretty program, that is fast, that will give me pie charts of
the drive, and allow me to drill down into the folders that are hogging my
drive space.

When I individually check all the root folders, they come to 200 GB, but the
680 GB drive has only 80 GB remaining, so there is 400 GB hiding somewhere
that I have to find,

TIA

Mark