I have a MBP 13 inch (I think a 2011). I considering giving that to my daughter and replacing it with a new MPA, likely a 13 inch. I am concerned with the punch it has, most notably the 4 or 8 gb of memory. I used Aperture on my MBP and it struggled with it until I added memory. I will not be using Aperture on the MBA as I'm doing most of my photo collection on my iMac. I would probably use iPhoto on the MBA occasionally and potentially do some small home video work with iMovie. It would largely be used for Office, viewing PDFs, web surfing, email and basic business tasks. How well does the MBA handle light to moderate tasks like above. Any recommendations on 4g or 8g and the 1.3 vs 1.7 processor or should I hold out and get a MBP when the new ones come out. Thanks.