the reality tunnel

There are some interesting backup tools for system backups (Time Machine) but I want to just be able to copy and verify a directory (and its children).  I’ve heard that the commercial product Retrospect provides copy and verify functionality, but I’m cheap.
This is the method that I used.  I’d be interested on hearing feedback about [...]

In the event that I switch mail providers, its good to have a backup. I found the isync program that seems like it will do a good job with this. Here is the command line I used to do the backup:
isync -1 -M mail_backup/ -L -s imap.myisp.com -u imap_username -a