i've updated DirectoryWatcher plugin so the filenames are used in events too..
that way you can do actions (create, delete, update, rename) in watched directory and the event would be dependent on the file name too (not just on the action).
this was added like the option in plugin properties
see if you like it and if it's usable to some (i hope it is)

later..
http://pastebin.com/m3dd97608