When will you start using a laptop instead of a mac pro as your main machine? I am looking forward to the day that a laptop will equal the power of the current Mac Pros, I will still have a huge 23 or 30 inch screen setup at home, but it would be nice to use the same computer on the go as the one I do when I get home. I am looking forward to a 3ghz quad core Nehalem laptop some day next year and I will unchain myself from the desktop for good. What about you what's your magical specs that would get you using a notebook exclusively? Or do you always need the very best and most powerful machine even if it means sticking with the tower desktop indefinitely? I do most of work in Final Cut Studio and sure current macbook pros can handle FCP (I can run the newest version on my powerbook g4) but rendering and encoding still take to long. I think when we hit that 3ghz quad core thats the sweet spot for me and I will say bye bye to the old desktop.