I've been in need of a new computer and have been searching for an Ultrabook to replace my old laptop. It will be primarily for personal use so I want to keep it thin, but my company does not provide us with laptops so I would like to be able to run CAD in case I ever need to work from home. So far I've been going back and forth between the Samsung ATIV Book 9 2014 Edition and Dell XPS 15 (I would get the i7 in both laptops). Is there another Ultrabook that would better suit my needs or would these two be fine? If these two options work, which one would be the better choice?