I was working on some video the other day on my powerbook, and I imported them into idvd, and started the burn process. First it had to do a number of steps before it actually moved to the "burn" phase, during this time the hardrive was running hard the entire time. Would buying an extrernal FW800 drive help in this processes? What I am guessing its doing during this time is moving and converting the imported imovies, do people typically find the G4 (and its 167bus, a 1.25 CPU in this case) being the limting factor or the hardrive. Also if it is the hardrive (which I am suspecting) how much faster would the process get with the external drive? Thanks for any info!