What notebook, particularly what screen size you choose for this: - will be the primary computer. - 8+ hours a day usage, not hooked up to an external monitor. - working in various area's of my home/office, couch, easy chair, desk, kitchen table etc - notebook won't leave the house often. - used for work, 50+ emails daily, iWorks, light photo and video editing, entertainment, surfing, no gaming. The amount of power isn't a concern, both can handle the work. Instead I'm looking for input on mobile screen real estate for long hours use. Stick with the lightweight 13" MacBook Air or go for the screen real estate of the 17" and accept it's over twice the weight of the air and much larger to work from. Having the 17" screen anywhere is appealing but I wonder if too cumbersome compared to the Air and I'd end up using the Air instead. Any MacBook Air owners have experience making similar decisions?