Hi all, Longtime lurker but i need some opinions on buying a MBA. I currently have a 2007 black MacBook (i know, i know...its not THAT slow and still runs pretty smooth), but its definitely starting to show its age. I currently have a 500GB HD that 2/3 is filled with mostly music and movies. I've been reading about a potemtial upgrade to the rMBA coming sometime this year so i was wondering if i should wait and get one of the new ones coming out, or get one of the current gen models? It would be my primary machine so i would need it for Microsoft office, Photoshop and Aperture (all of which i currently have on my black macbook) in addition to streaming music and movies to my xbox360. Thoughts?