Hey, I've been shooting a lot of RAW lately, and storing it in iPhoto. My Raws are about 5.5 mb (Nikon D40), and they take about 2 seconds to load them in iPhoto. I tried Aperture, and it's about the same, maybe a bit worse. I'm worried about this because I plan to upgrade my camera soon, and these new cameras have much more megapixels than my D40. How slow will that be. So I saw in iPhoto preferences that you can save these Raws as .tiffs. Does that mean it will keep the Raws, but load the Tiffs for faster loading? I took a Raw, and saved it as a .Tiff in Preview, and the file size skyrocketed to 47 mb. Why is that? Isn't Raw the most uncompressed you can get? How can I load these Raws faster? Thanks