Just thought I'd mention this to everyone:

There is a free WordPress plugin that allows you to do an auto backup of your site to DropBox.  I have been testing this plugin, and so far, it seems to be playing nicely with my Symbiosite. 

All you need is a free Dropbox account, and you put the plugin on auto.  The WordPress plugin is: WordPress Backup to Dropbox and it is here: http://wordpress.org/plugins/wordpress-backup-to-dropbox/

George