Carbon Copy Cloner by Bombich Software is a great Mac solution for cloning (bit to bit copy) your MacBook. Besides being FREE, this product is very powerful and fast. I did a complete clone backup of my Macbook Pro in just over an hour. It has a built-in scheduler for clone or incremental clone backups.
Another valuable feature of CCC is that you can mount the drive and pull files off of it as needed or since it is a bit to bit clone copy you can boot from it. That can be really handy in a crisis.
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Tired of the iPhone Automatic Backup Every Time You Sync with iTunes? You can disable this feature. See below.

From terminal in Mac OS X Leopard enter the following:

defaults write com.apple.iTunes AutomaticDeviceBackupsDisabled -bool true