I'm looking for a bag to carry my new work machine - an HP Probook 6555b. The size is 14.62 x 9.76 x 1.37. Firstly, I wonder if it would fit into a 2s Brain Cell even though it's a tad wider? If it does, I am considering the Super Ego. Alternatively, I am looking at an Empire Builder or Zephyr. I am assuming the padding inside the Empire Builder or Zephyris sufficient so I wouldn't need an additional Brain cell? Would the laptop fit in the Zephyr? I only see the exterior dimensions on the website, it looks like it should just about fit.
I intend to use this as my everyday bag to work - I do already have an Absolute shoulder strap.

I am grateful for any comments and advice - Thanks!