I've seen people get Leopard running on their beige G3s, with a G4 mod. And I think they also get USB on it. How would I do this? I have an old Powermac G3 beige that is no use because 1- it has OS 8, and 2- it has no USB ports. (Also there is no optical disk drive, I think it didn't work and I took it out a long time ago. I don't know what happened to it). Currently there is no way to connect to it with the outside world except by taking out the hard drive and putting it in a G4. Can I install Tiger on it without replacing the processor? I'd rather stick with the original G3 than upgrade to G4 for Leopard. I also want to install USB PCI cards and also maybe Airport if that would work.