Lenovo ThinkPad all the way now.
+1
For years I have been using the Lenovo ThinkPad's and they are just perfect, if you take their good quality one, either
"p" in the name for professional series or the "W" for the workstation series.
Actually the "W" series is so good, it runs my CAD software more stable and faster than on my normal workstation.
Yep this. I've got an X-series (X201) - the tiny ones. It's 4 years old but it has a docking station and I have two 17" Lenovo monitors and a keyboard and wireless mouse attached to it. Just plonk it down, shut the lid and it's a workstation class machine. i7, 16Gb of RAM, 256Gb Samsung SSD. Proper scary fast machine.
However I'm now sitting in the car with it on my lap while the better half has a hospital appointment, thanks to the 3G card it has built in and the battery has 7 hours left...
And it cost me less than a new Chromebook last year including the docking station and monitors!