I'm picking up two laptops next week and am wondering if there will be much of a performance difference between leapord and tiger. One Laptop will be a G4 1.33ghz with 1gb of ram. I hope for this to run the midi tracks to control lights on stage and the backing audio tracks(roughly 15 audio files running at once). The other will be a macbook pro 2.0ghz (core duo) with 2gb of ram. This will run the live VST synthesizers(no more than 2 at a time) through my sequencer(cubase or maybe a mac alternative) I'm thinking it would be easier to just have leapord on both machines but I may need to squeeze everything I can get out of the G4. Is their a performance difference or does one OS take more resources? Thanks in advance for any help you can give!