Just a quick question for any photographers out there: I'm flying out for a week this Saturday to photograph some wildlife in Belarus. I don't really want to take my old 15" MBP with me as it weighs quite a bit, given I'll have a 600mm and several camera bodies in the bag as well. So, I'd like to purchase a MBA. Me being me, I've left it too late so I'm now stuck with only being able to buy a stock model from an Apple store over the next two days. So do any photographers out there use an 11" MBA with the stock i6 and 4gb ram model? I just need to know if it'll be powerful enough to do light editing of RAW files from a 16mp Nikon D4, and eventually a 36mp D800. I know we aren't far off a refresh and the smart move might be to just lug my old 2009 MBP with me but I really would love to not have to carry that extra 1.5kg of weight in my hand luggage if I can help it!!