Hi guys, I'm currently selling my 13" non-Retina PRO model on eBay and aiming to get an entry level 11". The big Pro is just too bulky in weight and delicate with the glass display etc to be battered around in a backpack all day. It's also too flashy with the glossy screen. I feel a smaller Air would be less to carry around and therefore less prone to denting due to being thrown about in the backpack due to the lightweight. As it's smaller, it's easier to keep 'hidden' if necessary. The 4th Gen Haswell is also an added plus. I'm curious to see the performance of the HD 5000 graphics too. 12 Hour battery life (if in the 11") is something that'll be extremely beneficial! 4GB of RAM is a bit low though, and Apple charge quite a lot to double. I've heard of how the SSD can be replaced as there are now custom made 'SSD chips' for the Air. Can the RAM be adjusted in this way? Thanks. Let me know what you think too!