I'm waiting for my first Mac, an iMac 24" 2.8GHz, and am wondering whether I can use iPhoto without having my photos in a single file/library.
At present, my photos are in folders named by place, with subfolders named for various things (people, holidays, houses, etc).
The idea of my precious photos being in a single file (like Outlook uses for email) horrifies me. (I save my emails as files to circumvent problems.)