My personal solution is to have powerful desktop machines home and work, with an aging laptop that I pretty much only use when traveling. For your needs, it makes sense to have a more fully-featured laptop with some sort of "docking station" setup at home with your huge monitor, etc., and the newest laptops have great specs, so you're not making the sorts of compromises you'd make in the past.

That said, if you can wait bit, we're about to undergo something of a sea change as USB-C takes off. I'd love to carry around a universal charger in my bag that works with every device I might carry. With Apple and Google shipping devices now, the rest of the industry can't be too far behind. Perhaps by Christmas? We'll see.