So I have an early-2011 13" Macbook Pro and I've been holding out for a new rMBP for a while since it's getting slower and slower every day. I use a lot of Photoshop and Illustrator and some video editing on Premiere since I'm a digital media major. I'm considering a 13" rMBP and I'm wondering if I should upgrade to the 16GB RAM option, is it worth it? And for storage I'm thinking 256 or 512 GB, currently I have an almost full 320GB HDD and an external HDD of 1TB, but the price jump is quite significant, so I'm not sure. What do you guys think?