WordPress Backup Regime

So, out of curiosity: How do the rest of you secure your data against loss due to server failure or other problems?

My current setup:
My sites are mounted as drives via SFTP under OS X (using Transmit).
I have a set of scripts configured to routinely make incremental backups of the data on those 'drives' via rsync (using Synk Professional).
These backups are secured on a storage array.

Of course, I also have a backup solution from my hosting provider, but the above is my personal backup system.

What's your setup?