On Dec 3, 2007, at 7:33 AM, Greg Nembhard wrote > now I'm thinking I should have shelled out a few more bucks and got > a machine with DVD/r and at least running at 1gMHZ. What you should have done in the first place was install your hard drive in your brother's QS as a "Slave" drive and used his machine to do the OS-10.5 installation. That is the method I used to install Leopard on a 733MHz G4 and it has worked perfectly from the first day. Other people have done this to install OS-10.5 on 500MHz Cubes, so it will work as long as you go about it the right way. The OS-10.5 DVD does a processor speed check before it allows or denies the installation. It doesn't care whether the drive is a Master or Slave and will do the installation as long as the other requirements (drive space available, RAM, DVD drive, etc) have been met.