Showstopper! @Dropbox doesn’t support resource forks and extended attributes on the mac. Jiminy!
@adamengst why not use rsync directly via cron. I do that and run it every 8 hours. Saved my bacon once (allthough on 10.3.9 i use psync).
@adamengst For DB backups you should never backup the actual DB. Dump them elsewhere and back that up. Definitively!