Ah, the 70s. The years of bell-bottoms, classic rock music, and the birth of one of the NFL's most storied rivalries: Cowboys vs. Steelers. The Ones Who Hit The Hardest ($17) examines this matchup of the two most successful teams of the era, set against the backdrop of Pittsburgh, which was facing the closing of its steel factories and the loss of more than 100,000 jobs -- sounds sorta familiar, right Detroit? -- all of which culminated in the Steel City's last-minute victory in Super Bowl XIII. Just the thing to get you in the mood for next week's regular season kickoff.