I have tried many, believe me. First thing, if it has glossy screen I would quickly discard it - your vision health is worth much more than a pretty picture in Facebook. Having said this, I would go for dell XPS family. They are not cheap but they are very robust. In addition, screen border is almost nonexistent so all it's size is for your screen. Very good Linux support (there is a a version that ships with Ubuntu). Keyboard is fantastic and the combination of carbon fiber with aluminium works great, in my opinion. Give it a try.