Oh, I forgot to mention that the Ti PowerBook is dead, but the HD works and has been removed and will be placed into an external enclosure.
So. I guess I can (hopefully) boot the iBook from the external enclosure and then use Disk Utility to erase the iBook then do the cloning. Or, if the external enclosure can't boot the iBook for some reason I could start it with a CD, then erase and clone.
The main thing I wanted to make sure of is that the system will have all of the necessary drivers, since the iBook is newer then the Ti PowerBook. The iBook as hardware that the PowerBook does not such as USB2 , Bluetooth, 802.11g, etc.