Video editing on iBook g4?

I would like to use Final Cut Pro on my iBook g4, 1.42 GHz PowerPC G4 512 Mb memory, version 10.4.11. What can I do to maximize performance on this computer? I am willing to do anything to this computer - new ram, new OS, etc. Which version of Final Cut Pro could I use? I will use this computer for editing only.

THANKS!