External H.D. and iPhoto & iTunes -Question

[laughingbabe16]

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! :D

[skybolt]

For iPhoto, look here: http://docs.info.apple.com/article.html?path=iPhoto/7.0/en/6331.html

For iTunes, look here: http://docs.info.apple.com/article.html?artnum=301748

Works great! This is the way I keep my photos and music!

[TheStu]

As for re-imaging, yes that means for a reinstall. Basically what I do is after I install an OS (and get it set up the way I like it) I use Carbon Copy Cloner to clone the hard drive to an external hard drive. Then, if I ever FUBAR up the situation completely (pretty rare) I just boot off the external, wipe the hard drive, and restore my OS to how it was.