I have AppleCare on my iMac G5 and I have two sticks of RAM in it. The original 512 MB stick that came with the Rev. B iMac G5's and an additional 1 GB stick that is supposedly Apple pulled RAM. (1.5 GB total) I remember reading that you need to keep one stick of Apple memory in your machine to avoid voiding your AppleCare. I really don't want to cough up $200 for a 1 GB stick from Apple. Could I just get another pulled 1 GB stick? Or should I confirm that my current 1 GB stick IS an original Apple one? I've been tossing around buying Aperture since I've outgrown iPhoto and I like the features that Aperture provides. I'd just like to have 2 GB of RAM. Still, I'll only be handling 5-7 MP images and no RAW images. At $149 for the Academic version it's not that bad. Should I just stick with my 1.5 GB? I seem to have narrowed down the source of my page outs to Skype usage.