People will be pleased to hear that Vista now has a complete PC backup program (disk imaging, anyone?). I'm unsure if it will be available in the Home editions of Vista, but it's pretty useful - and fast. It can save a copy of your system OS and later, also differential copies (that means it only saves what has changed from the previous backup to save space).
Unfortunately, it does not have an option to save to a network drive, nor does the Setup program have the option to load a backup from one. 'Tis a shame, since this was necessary for my laptop when I planned on switching HDs.
Oh well.
EDIT: It would be nice if it WORKED to restore such a backup. Stupid microsoft.