Quote Originally Posted by Diamond View Post
Only problem with that is going to be getting the shadow underneath it correct. I'm planning to have a drop shadow underneath the border, and I want it to 'line up' correctly. Guess I can do a separate layer for each corner and each straight and fiddle the shadow so it matches it's companions.

Very time consuming though... Ah well. If I didn't have a crapload of patience, I guess I wouldn't be making maps.
Just copy and merge your new border layers into a final border layer (and hide your separated ones) then apply any effects to the merged layer. Or if you don't care about backing things up you can just merge the originals and add the effects to that.