Here's a question for y'all... Is this possible (and legal?): *I have a Mac Pro running 10.4 and a G5 running 10.3. *When Leopard comes out, can I upgrade the Mac Pro to Leopard and then use the 10.4 disks to upgrade the G5 to 10.4? Again, is this legal, and if it is, will the 10.4 disk (obviously made for the Intel Mac Pro) work with the PPC G5? Thanks for your help!