I've run out of space on my 16gb iPhone 5. I will upgrade when the 6 is released, but in the meantime, I want to delete all the photos/videos to free up space. The photos are backed up to my mac. After I upgrade, can I move the photos from my mac back to my iPhone? If so, what's the best way of doing that? I don't use iPhoto on my mac and have no desire to do so. I use dropbox. Is there a way to transfer photos/videos from my mac to my iphone? Thanks!