How to create TextMate project that contains all files in a folder (and updates dynamically)?

I'd like to create a TextMate project that consists of all files in a particular folder, with the added stipulation that as files are added to (or removed from) that folder that they be added/removed from the TextMate project. Is this possible? I'd love to have a TextMate project that can mirror the list of files being worked with by the folder storing Elements files...