I just found some articles on this little trick and I would like to hear from you guys if this will indeed work with my machines and what are the chances of really messing things up -- I don't want to be computer-less. I have an emac G4 800MHz and a fairly new ibook. I just bought Tiger 10.4 for the emac and want to install it BUT, the eMac doesn't have a DVD drive. Can I do this: Using FireWire Target Disk Mode This installation method relies on the ability of modern Macs to boot into a special mode called FireWire Target Disk Mode that causes them to be seen by other computers are simple external FireWire hard drives. It will require that you have a spare Mac with a built-in SuperDrive or Combo drive (anyone knows why they arent called ComboDrive, by the way?) to play with. Start by starting the DVD-deprived Mac into FireWire Target Disk Mode, by holding the T key down until you see a big FireWire logo dancing on the screen. Then, by using a thick, known-good FireWire cable, connect it to your other Mac and wait until it appears on your Desktop. Finally, insert the Tiger DVD into the computer and restart it. From there on, simply follow the traditional steps. You will be able to select the external Mac in the Installer Window as the destination drive for Mac OS X. Your other volumes should be left intact. Would I be able to use the ibook as the host?? I don't know why but this sounds pretty scary. Thanks for any help on this matter.