Any suggestions on the best way to transition to a new Powerbook? I've been using a 800MHz model for ~4 years, but there is a new 1.67GHz 15" on its way!!! I would like to start "clean" with the new system. Am I best off doing a fresh install of any applications and then transferring over my user data via firewire? Is there anything outside my user directory that I should keep track of? I think Apple provides software for loading your old computer's data onto the new computer via firewire. Is this worth using? Thoughts?