I'm curious about what is making you want to move away from a MacBook to a linux laptop. I've been using a Lenovo G580 with Ubuntu for about 3 years for web development at home, and a MacBook at work. I vastly prefer the Mac to my personal Ubuntu laptop.

One of the reasons that I prefer the Mac is that the dev tooling is fairly effortless to get set up and use. On Ubuntu, I'm often spending MUCH more time getting tooling set up than on the Mac.