I just went and bought a new screen for my PowerBook G4 today!
Now all I have to do is wait 3-4 days. Finally, I'll be able to use it as a laptop, except I don't have a battery…
You really need a G4 for OS X to feel enjoyable and speedy, even if you are only web browsing or whatever. And you'd be best with Leopard, because its the most secure and software …