Is there a way to have the Dropbox grades go directly to my Grades tool?

Yes, when you set up the Dropbox, there is a Grade Item dropdown menu that appears in the settings. Select the grade item you wish to link to from this menu. When you are reviewing each students submission, you can click on the Evaluate link to add the student's grade and leave any feedback for the student. This information will be sent to the Grades area for that assignment.

For more information, please see our Creating a Dropbox Folder quick guide and Creating a Dropbox Folder video tutorial.