I thought it might be worth giving more info about this - in case you dont get anything better:
FWIW I'm currently using FileHamster, but that doesnt do exactly what you want either.
-tomos
FileHamster ('Advanced' version) will backup any changes made to files within a watched folder, with the ability to comment on the backup.
You can then generate a report for export to text file, or 'to spreadsheet' (which opens automatically in my default programme).
The report will list:
- all backups made (or made within a period of time)
- date/time
- filesize
- comments
Obviously new files will be included, but it doesnt mark them as new.
You can see within FileHamster if a file has been deleted - but not that easily and info not included in the report.
More info about using FH in a thread I started here
Using FileHamster to keep track of status of a job. It's an app that could be developed hugely but they dont seem interested in new ideas - it's more or less just kept at maintenance level.