Hybrids actually don't get very good gas milleage for 2 reasons. 1) The batteries die quicker because you're also hauling an internal compustion engine around (plus fuel and accessories to make it work. 2) Once the batteries die (or you reach a certain speed), the internal combustion engine is less efficent than a normal car because it's also hauling an electric motor and batteries around.
People think a hybrid gives you the best of both worlds, but it actually gives you the worst of both worlds.
Just make sure you get a monitor that works well in potrait. Many (even those that come with stands that swivel to portrait) look like shit in portrait mode. Something about the eyes seeing it at slightly different angles.
I'm not sure what spec to look for when finding a portrait-friendly screen, perhaps someone can enlighten me.
It is easier to change the specification to fit the program than vice versa.