Ok so the Sonar part is somewhat of a weak effort to make this post relevant to the Sonar forum. But then again, this is an unmissable chance to practice mixing with your favorite DAW!
NYU is offering a free online mixing course starting May 16 and Mr. Gabriel has kindly donated some of his stems, which will no doubt be pretty warm stuff.
http://www.playwithyourmusic.orgThe course is based in their own browser-based mixing tools, but I don't see why you won't be able to do it with Sonar.