Is there a way to just move one application via Apple's migration assistant. I want to move aperture, and I've lost 1.5 and only have upgrade 2.0 and 3.0....
Typically you can just copy it to an external storage medium (HDD, USB stick, ...) or via network to your new Mac into the Applications folder. Also have a look at Macintosh HD / Library / Application Support / and Macintosh HD / Users / YOU / Library / Application Support / for Aperture folders (you can also use the search function in Finder (Command + F)) and copy those to the respective similar folders on the new Mac.