Search for The Gimp. It's an open source graphics application (therefor free) that's similar to Photoshop. I haven't used it personally (as I have Photoshop) but it'll be a hell of a lot better for you than word. As to DVD templates, just create a new document, 3240 x 2175 pixels at 300 dpi. You spine is 170 pixels wide in the center of your created document. Hope that helps you a little. I'll check in again if you have any questions.