Hi everybody. I have read a lot of topics, but I feel to ask this because I need ad hoc advice. My main tasks are: Xcode: no rendering, so no need of a powerful video card, but still some RAM "light" use of Photoshop (not simultaneously with Xcode) web surfing writing eassys/notes. I'd go for the 13" MBA over the 13" MBP because it has SSD memory, a nicer screen resolution, has just been updates and defenitely looks awesome. I think 4 GB of RAM would be enough. However, the processor speed seems a bit low... And also, I need portability, but not that often. For my budget, the 15" MBP is too much, but I have an external monitor so that's not a problem. Will I be happier with a MBP or with a MBA?