> Macs with a FireWire port can boot from an external FW HD. That is not > necessarily the case with USB2. Some Macs can boot from it, but many cannot. > Of course, if you are not cloning your computer to your backup drive, this > will not be of importance. Not all Firewire HD's can be booted from. I have two Firewire inclosures, one I can boot from, one I can't. Of course the one I can boot from has a dead powersupply, so I've got a power brick plugged into it now. Zane