So I recently got an external hard-drive, 80GB by FireLite, I believe. Anyways, I only have 25 GB of space left from my 60 GB H.D. on my macbook. To save some space, I want to put my iPhoto library and iTunes library on my external H.D. How do I do this without screwing up anything and or losing all my data? (BTW, I have the new iLife 2008 version, as I know the bundling of iPhoto library changed). Second question- not at all related to the first. What do people mean when they say they need to re-image their computer? Does this mean re-install the operating system and start anew? If not, then what does re-imaging entail of and is it complicated? Thanks!