I just bought a macbook pro and I have a photo library with 15,000 photos on an external hard drive that I'm bringing over from a g5 iMac. It really brought the imac to its knees whenever I loaded iphoto so I don't want it to load all those pictures each time that I run iphoto but I would like it to load them when I plug in the external hard drive. Is this possible? I know that you can point it to other picture locations with iphoto but will it get screwed up when I disconnect? Let me know what you guys think!