You can make things happen automatically when you add files to a folder, by using Folder Actions. Here’s how to set up a Folder Action to rename any files added to a specific folder.
Applescript 103
The final of 3 Tips about quickly opening files and folders with Applescript.
Applescript 102
The second of 3 Tips, showing how to open a whole swag of documents with one click on an Applescript.
Applescript 101
Sometimes I have to open a dozen folders and files for one or other of the projects I work on. This is a big pain; Applescript can take all the hard work off my hands.