The music is from Warrior ( The SoLariS Remix ) by SoLaRiS available at ccMixter. You can find out more about SolaRiS at Jamendo.
The map of Lake Ladoga shown to the players.
The Wikipedia entry on the Varangian Guards.
The podcast referred to in the opening is Return to Northmoor, and the episode was "D&D and Story Games: Will they Blend?"
You can download the audio file here.