Ok I know this is probably pretty simple, but I wanted to make sure I do it right... I have a Macbook Pro. I want to be able to install Mac OS X to an external hard drive and then be able to boot from it sometimes (but keep my standard internal HD installation to fall back on when I want it). I do have iPartition because I read a while back it was a good way to get started. Is there a simple guide or tutorial I can use, or can someone post instructions? Thanks!