Here is a great site for everything Photoshop. It is a site that is sponsored by Adobe. There are 1000s of things available, they have everything from brushes to styles for PS. You do have to be registered with Adobe in order to download but I assume that Elements users would qualify.
Something that is even better about these things is that most of them are freeware and can be used in your designs for sale. If you havenít been here yet be prepared to be WOWed! Julie