Hi, I have an imac, still running OSX 10.4 (I have the leopard update but haven't installed it yet). I have been using iphoto since I purchased my mac, and while there is a lot I like, I am having a hard time getting organized since I take a lot of photos. I currently have 12,000 photos in iphoto, but I also have tons more on an external drive from before I got my mac. I do not wish to import these into iphoto as I will lose the sub folder organization. I have read about Aperture, but I am not a professional and do not shoot in RAW, so I don't know if that application is just going to be overkill for what I need. Could anyone recommend an application that might suit my needs? I mainly just need to be able to organize into sub levels, especially when I bring in the older photos. Thank you so much, and I hope this thread helps others, also.