Hello, Time is arrived to change my current laptop, a white mid-2007 Macbook (that I love) . I have the impression that Apple is changed a lot since 2007 but I hope to find the same quality than before. My idea is to buy a 13" Macbook-pro, 2.6GHz i5, 256GB But to extend its life I was thinking about adding 16GB RAM. What is your opinion? Is it better to change the processor to i7 or increasing the ram to extend the life of the macbook? I would like to use the macbook with photoshop and illustrator, and some 3D rendering of microscopy images (with specific softwares). But most of the time I will be probably just using Office or a web browser. I also have another question...Since I will order my macbook online...are there any frequent factory defects that I should check at the arrival? I remember that with my previous macbook it was frequent to receive new laptops with dead pixels. Many thanks!