Hi All, Thanks in advance for your always helpful advice. I always do my own research first but couldn't find this particular answer. I have a large collections of movies music and photos. I just bought an external 1TB drive to store stuff on. What I want to do specifically is load my entire iTunes library *occasionally* from this external. Then, when I don't have my external with me, I want to be able to keep a separate library loaded from my internal HD on my MBP. Is it as simple as option+clicking the itunes icon and directing it to the external HD? Then next time, option clicking and directing back to the local itunes library? I've found that I can do this with iPhoto and for me its quite convenient. I'd prefer to not have to merge the two iTunes libraries and use the external all the time, or have a hassle each time I want to go to/from. Hope this all makes sense. Thanks!