I have a buddy doing film editing on the G4 12” but I’m sure if he had an option, he’d love your new Macbook with those nice Intel Core 2 Duo processors. :)
You can get by fine with a G4 machine for the work described at the top of the thread. But seeking it out with newly spent dollars is something different entirely and that’s why I said not to go that route.
You buddy would not like the MacBook for film editing
No firewire!