I have a lot of files in both my internal hard drive and a few
external hard drives. What tools are there so that I can reorganise/
index the files easily? What I am looking for is a tool that can let
me tag individual files/folders like Google Docs and Gmail, then will
create the directory structure so that to put the files in the new
directory structure. Something like the way del.icio.us works would be
very good. Is there such a thing out there? I have tried a tool called
Tagg but it only does the first part of what I am after. Are there
other tools out there relating to this?

Best Regards,
Benson