I am moving to Mac from PC but am not sure which machine to purchase. I would prefer a notebook but want to know if a notebook can handle my video requirements and if so which is the best for me to purchase. I have over 80 hours of video that I want to edit and burn to DVD's. Once this intial project (80 hours) is complete then my video editing will be an hour or two a month. My concern is what machine will be able to efficeintly render and burn these DVD's. Any thoughts?