I have the latest Aperture and iPhoto. Aperture is killing my Macbook Air every time I import photos and I'm not able to look at them for a long time without stalling and the Apple wheel spinning. I don't really use most of Apertures features and like some of iPhoto better (such as the ability to import from Mail.all). But I can't find a friggin' way to migrate back! Any thoughts would be greatly appreciated.