talking with you also inspired me to fix up my type categories, and now i have a great categorization system for everything from 7" vinyl to remix albums. sweet.
ok so the stuff on the right side is a mix of things. the artist image at the bottom i do manually, and just point the CUI album art viewer to an artist.jpg image i keep in each album's folder.
the middle bit i use a component called Track Info Mod. i script it to pull flag images out of a directory based on a %country% tag, and filetype images based on the codec. the rest gets scripted to display standard file information.
behind that is a biography tab which uses the Biography Panel plugin to pull artist biographies off of last.fm
and behind that is foo_uie_lyrics_panel showing the contents of my %unsynced lyrics% tag.
i'm happy to share my scripts, so let me know if you want them