Time Machine and MyBook Studio

WD External Drives External Drives for Mac
1

I have two external hard drives that I want to back up to my new MyBook Studio?  Will Time Machine do that?  If not, how do I do it manually?

2

Here is an article I found:  Time Machine will back up external drives to Time machine drive.

http://www.onedigitallife.com/2007/10/30/does-time-machine-backup-external-drives/