I've taken it upon myself to digitize the thousands of slides and old photo albums my family has. I bought a 1 TB WD hard drive and I have a scanner and everything. What I'd like to do is store these pictures on the external hard drive. However, I'd also like to organize them using iPhoto. I don't want to carry them around on my laptop's harddrive all the time--I just want them to be accessible in my iPhoto (or, even better, in either I or my father's iPhoto, depending on who is connected to the hard drive at the moment) whenever I'm plugged in. It's analogous, I suppose, to someone who only wants to carry a gig or two of songs in their iTunes photo when they're walking around but wants to have fifty more gigs of music accessible when they plug into their external HD. What is the best way to do this? I thought about just unchecking the box that says "copy to iPhoto folder" in Preferences whenever I'm introducing new pictures, and then re-checking it before I import pictures I want to save on my machine. Is this the best way, or is there another option? Thanks!