Hi everyone. After five years I am now ready to pass on my Rev A Macbook. I am tied between the 13" Air and Pro. The resolution of the Air over the Pro will come in very handy for when I am typing documents with web pages and when I use Logic Audio. The problem is the Air can't be upgraded to have more than 4Gb of RAM. I am looking to future proof the computer for a period of at five years and I feel this limit would be a problems 2-3 years down the line? So the options are: Air with i7, 4GB RAM and 256GB SSD Pro with i7, 8GB RAM and 256GB SSD Many thanks!