I'm using Aperture 2.1. I know Aperture stores it's images in a library like iPhoto...but is there a way to get to the pictures in the Finder so I can open them or copy and paste?
Yeah, it's kind of a pain, though. You gotta right click on the Aperture Library and select "Show Package Contents". Keep clicking through the folders till you find your Aperture project that contains the pics. Right click on that and hit "Show Package Contents". Keep following the folder structure and you'll find 'em.