This is something I just haven't been able to find in Help, and it's bugging me. I want to change the default app for PDF files from Preview to Adobe Reader 7. (Reader 7 is much better than 6 ever hoped to be, and it offers a bunch of things Preview won't do, like allowing you to copy text from a PDF file...) Maybe I just haven't used the right search terms, but I can't find anything on it.
How does one change the application that opens a file?