I have a 450mhz ZIF G4 and a Radeon 9200 on the way that I just bought from member Gavinstubbs. As soon as they arrive, they are going right in one of my B&Ws. If I'm not mistaken, these upgrades should make it possible for me to install Leopard on the computer. As I don't particularly like using Leopard Assist, my plan is to do the Leopard install on another computer. I'm wondering, however, if I'll need to do any other tinkering to get things to work. I know that some iBook G4s that were officially Leopard-capable used the 9200 GPU, so I'm assuming that the kexts should already be there the graphics card. Has anyone here done this, and if so is it a plug-and-play install? If not, what else needs to be done to get it to work correctly?