I didn't use SP550, but Aperture read my E1 RAW. However, after a few shot, I start taking TIFF, never bother RAW.
20 inch iMac with 4GB RAM will be enough. In fact, 2GB RAM is good enough and you can spend those money on a better camera. I don't have RAID setup on my previous iMac so I don't know.
20 inch iMac with 4GB RAM will be enough. In fact, 2GB RAM is good enough and you can spend those money on a better camera. I don't have RAID setup on my previous iMac so I don't know.