I am looking to buy a MacBook Pro Retina but am torn between 13 inch and 15 inch models. I am going to be starting a graphic design degree next year and will be using programs like Photoshop and Illustrator, etc and I will sometimes need to use a large screen when working on projects. I won't really be working with video much and I don't use my computer for gaming, so a really high spec graphics card isn't really a priority, as from what I can see the 13 inch is more than enough to handle the Adobe suite. I live far away from my uni and getting there and back involves a lot of walking and train travel, so portability is a huge consideration for me. The smaller and lighter the better (within reason). I have heard conflicting advice from some people saying the 13 inch is perfectly fine, and some saying that it is way too small. Obviously this comes down to personal preference, but do you think it would be wiser to purchase the 13 inch along with a 24 inch external monitor so that I have the best of both worlds - portability combined with a large screen area when I need it? Or should I just purchase the 15 inch on its own? The 15 inch may still not be big enough for some projects I may need it for, and is more expensive. I can get the 13 inch with double the storage space for almost the same price... I am really torn about which option is the best to take. Any advice would be appreciated, especially from those that use their MacBook Pros for graphic design. Thanks!