Hi, I am going to buy a new mac laptop soon, have had a MB Air 11" (4GB RAM, core i5, 128GB SSD) for two years, and it is starting to slow down a lot. I want a powerful, future-proof and very portable Mac. I will mostly be using it for Lightroom editing, light Final Cut Pro use and smaller Illustrator and Indesign projects. My budget is maximum $2000. Which specs do you think will be important? Which MBP model?