You've probably already seen...

… Mark Pilgrim’s great, snark-filled Essentials 2006, listing his critical pieces of software after switching from Mac OS X to Linux. My faves:

  1. digiKam + Kipi plugins. It's just like iPhoto except it calls albums "tags", exports to Flickr for free, exports to HTML that validates, stores my important metadata in a SQLite database, can be operated entirely with a keyboard, and doesn't suck
  2. amaroK. It's just like iTunes except it automatically fetches lyrics from Argentina, automatically looks up bands on Wikipedia, automatically identifies songs with MusicBrainz, and its developers are actively working on features that don't involve pushing DRM-infected crap down my throat.