I wouldn't rate fingerprint scanners anyway because of the fact that they are relatively easy to fool. I'm sure there was a tutorial about it not long ago which showed that with a few simple materials you could lift someone's fingerprint from the surface of the scanner and create a false copy of it to then use.

Another point is that stopping someone from getting access to a machine by not allowing them to log on or whatever is relatively limited since the data is still stored on the machine and can be accessed by removing the drive.

ac