[pkscout]

Hopefully the dev will consider supporting artist.nfo files as it appears that in my xbmc install that xbmc or some of the mods are exporting that info to the file on export. It would be really nice if all one had to do was add a sub folder to each artist folder and copy images into it, or edit a nfo file to add their own artist images.

I feel like I'm not understanding something. Artist Slideshow already does what your asking for. If you add a folder named extrafanart to each artist directory, put images in there, point Artist Slideshow's local artist folder to the root of your music directory (i.e. the one that has all your artists in it), and tell Artist Slideshow to prefer local images, you should be good to go.