Hello there everyone. Can I please have your expert opinions on whether to move my iPhoto library into an external hard drive and make that my default location for pics or simply copy my photos over to the new drive and in that way use the external drive as a back-up. I'd like to have more than one set of pictures cos I'm afraid that if I only have the external drive or the Mac if anything should happen to either of them without a backup location my photos will be lost forever. Thing is, if I keep simply copying the pics into the external drive, that doesn't help the rapidly diminishing storage situation on my Mac itself. I can increase the capacity but even that will run out sooner or later. So, do you all actually recommend moving the entire library over to the external hard drive and making it my default location for photos or keep iPhoto on my Mac and simply copying the pics? Sorry if I'm all over the place with my question...hope you get the idea Would need links to a video tutorial to do either one, please, thanks! Also, why is it that my Mac doesn't seem able to calculate the size of my iphoto library? It's stuck at 'calculating size' forever and I'd like to know the size of the beast I'm dealing with. Same question for iTunes - can I transfer my library of songs into the external drive without losing anything? Thanks heaps!