Thanks - Wefis may have what I'm looking for but I can't find the stats/reporting side? For a user, it appears to be largely a file management system.

What I'm envisaging is something similar to a web log analyser.

I'd be more than happy to be pointed at an equivalent solution, Mac-specific or cross-platform capable. I didn't dig very hard because I suspect I want to extend and customise it.

The problem I'm trying to solve is like NetWallah's - except that tells you only about disk usage; I'm trying to take it up a level, to the information usage, ie. what information is stored in what kind of documents, how frequently are they used/modified and how does their content correlate to their filename.

I'm envisaging a tool that will help individuals and organisations to improve their information management practice with some simple reports that guide improved behaviour.

If this has already been done or even half done, I'll happily use an existing solution and save myself time :-)