Free Space Monitoring

Couple of times I've let some downloads fill up my C: drive.
I know this is a "me" problem, but I wonder if its possible to add some kind of option in :

Preferences -> Transfer Options (Near the check for free space before downloading option seems a logical place to me)

An option for :

If free space drops below : Bytes / MB / GB (drop down), disconnect ftp after current file finishes

Feel free to delete suggestion if its considered a nonsense request -- I wont take it personally.