No, I'm not done with Firefly yet. There is more I want to say about it if I can get my head wrapped around words enough to describe why it's so moving to me. For now, here are Mal's Song, a filk written about the show specifically, and Believe In You, a song from another show's soundtrack but fits Firefly just as beautifully. Both of these songs give me chills.
Believe In You (as a Browncoat Anthem)