Windows Server 2003 - File/Directory Inventory and Reporting

Question

Hi All,
My company would like to perform an inventory of all user files on all shares in order to perform a clean up rather than buying more disk space for those servers that are starting to run short.  We're looking for something that could be run on each
server that would look at the following metadata/information:
Show UNC Path (optional)
Show Creation Date
Show Last Modified Date
Show Owner
Show who last modified
Show Size
Scan to see if the file is duplicated in another place in the filesystem
Again, the desire is to reduce storage space consumed in order to make more space available without simply going out and adding more storage.  A commercial option isn't out of the question if there is no native tool sets available.  
I understand that Windows Server 2008 actually has this native, but upgrading these servers to 2008 would also require hardware upgrades which aren't desired or practical at this time.
Thanks in advance,

Answer 1

1. Install Powershell if you have not done it yet
http://support.microsoft.com/kb/968929
2. Modify appropriate script from Script Center and/or powershell pages/forums
http://technet.microsoft.com/en-us/scriptcenter/dd742419.aspx
http://powershell.com
3. You can form the output into comma separated data file, that you export to Excel.
HTH
Milos