Ok, I have the 64Gb version which is just fine. I can however see a time where on occasion I will want to have some more movie files to access- such as a long trip etc... Right now I have a 16Gb thumb drive to have a couple movies but I'm thinking a high quality portable external hard drive would be just the ticket for the occasional need. Is there any ones that stand out as must buy or stay away from? I would prefer to be able to play the media right from the external drive rather than copy it to the MBA'a desktop- is this possible or will the image be jumpy?