Backup your Mac

Just a short one. See this article for a nice discussion of backing up your Mac.

http://lifehacker.com/software/how-to/backup-your-mac-272211.php

I use ibackup (available from http://www.grapefruit.ch/iBackup/), which is free and works well for me. A backup of 40GB over USB2 takes about an hour and a half. It has all sorts of fancy options that I don't use. Take care.