I'm using iMovie 6 (for the first time) which is all going well apart from a couple of problems. I'm working on a film from my hols which will end up being around 1 hour long, (from 7 hours of film). As I'm downloading from my Sony Handycam, its starting to tell me I have very little disk space left on my computer, (its showing 6.48GB available). I've so far got 35 mins of the film finished. I'm working on a Powerbook G4 with 1.12GB of memory. Can my G4 handle this?