So Hey guys new here and I am trying to decide to on a laptop to purchase, honestly not a Mac person like most college kids. I want something at least i-5 preferably i-7 processor, with at least the 15" screen. It is something i will be using for classes and i will need to run programs like MATLAB, but i also want to have other features like the touch screen and a good screen that isnt too bulky. Trying to keep it under 900$ and just dont know much about higher end PCs because i have only needed a i-3 till now but need better. thans guys!