Nope, that reply was good enough for me. I'd thought of your last suggestion (separating dynamic/static content) and was concerned with the performance of the dynamic layers. For instance, I would have a "dynamic" layer for each entry in a filebrowser or playlist and static layers would be used for overall "theming". My initial concern was with number of layers -- but I don't think I'll go over 100 -- and if I do it won't be by much. And my secondary concern was performance -- how fast could they be updated. Because each layer has its own z-index, I didn't know if there was some kind of performance penalty or benefit for occlusion. It sounds like it'll work (looked OK based on documentation before I posed the questions), I just wanted to run it by someone before I started hacking away at something.
Thanks,
RT