I have a 27" iMAC that I'm planing to exchange for a Macbook air. Reason being is because I would really like to have something portable to work with and maybe later on buy a 27" thunderbolt display. Do you guys think the Macbook air will hold up good for video editing I mainly use screenflow and sometimes FinalCut pro. I will be working with HD footage from my Dslr. I would like to hear your thoughts on this matter.