Yes, I'm also at the stage of disc art only - I've just got too many discs to have covers and cases for all of them. I was planning to use exactly the same system as you are using - already made my templates (using the same posters you chose!), the only difference being I don't include the movie's title logo. What I didn't have planned is the optional format logos, which is a great idea. Did you scan yours or are they downloadable somewhere?