I would like to upgrade from iPhoto and from the videos I have seen I like the Aperture interface and it seems pretty user friendly. I know that Lightroom is more popular and has more resources, but given my fairly basic needs, I'm sure Aperture will be sufficient. I have two concerns: 1. Aperture 3 is a little old at this point and I suspect eventually (hopefully sooner than later) Apple will get around to coming out with Aperture 4. The price of Aperture 3 is certainly reasonable, but I wouldn't want to have to pay for it again should Apple come out with a new version. Is there any indication from the past that there would be a lower upgrade price? Or is there no precedent now that the distribution of the software is through the App Store? 2. More importantly, I would like to make sure that in the event that I decide to switch over to other software (like Lightroom) or non-Apple hardware I will easily be able to get my original and edited images out and over to a new system. Is there a way to set up my files so that this wouldn't be a problem? I still haven't gotten a handle on the referenced vs. managed library concept and which I should be using. Since Apple set up my Mac for me when I moved over from Windows a couple of years ago, they automatically set iPhoto up to use a managed library and I lost the original file organizational structure I had set up. Perhaps I should just leave it that way? Thanks.