Hey everybody, first post here. I've been reading everything I can lately and haven't found the answer to my question yet so I figured I'd post up here. My wife and I will be moving from Hawaii to Germany in a couple months (military). Our household goods (ie my iMac) will take about 2 months to get from here to there so we're going to buy a laptop before we leave. I'm planning to go mac but I'm open to an ultrabook as well if it's cheap enough with good enough specs, but it's got to be at least a couple hundred $ cheaper than the mac just for ease of use issues I figure. Anyways, my main concern is this: I just bought a Nikon D800 and it's files are MASSIVE. A single raw image is ~45mb and I intend to be taking hundreds if not thousands of pictures between now and then. I don't intend to do any heavy editing on the laptop, mostly a few resizes and post online for now, but wouldn't mind enough oomph to generate a panorama or two. I realize an air will not be super fast with this stuff, but as long as it CAN do it then I'm ok with it. The maximum 4gb of ram is the biggest issue in question as far as I can tell. Now I realize with an air I will definitely need an external HD, but the portability sounds very nice when I already have ~25 pounds of camera/lenses in my bag. The lighter the laptop the better in my book. I also realize the refresh is coming soon and I'm going to try to hold out for a new one, but figure I need to get whatever it is I'm going to get by the second week of June at the latest. So, do you guys think the Air with an external drive can handle the D800 files or should I look at a 13" macbook pro? This option not only costs less out of the gate but doesn't need an external drive either... It is significantly heavier though. Any help is really appreciated. Edit: I use Adobe Lightroom 4 and Photoshop CS5 when necessary.