Is there any way that I can create an alias to allow iPhoto to store some images on an external drive and some on the internal? I have enough photos that I'm filling my drive and my laptop is maxxed out. (18,000+ right now) I would like to be able to keep the albums and folders for indexing but to offload low priority images for retrieval only if needed. Right now, I have everything uploaded to KodakGallery as a backup. It also allows me to maintain the albums for easier access. I have been able to do this with iTunes and just have "can't find this" flag that appears if I am not connected to the external drive. It doesn't seem to work with iPhoto's storage scheme. Any help is appreciated.