Two brand new titles join the Xbox LIVE Arcade library this week! “Puzzle Quest: Challenge of the Warlords” ups the ante on traditional puzzle games by incorporating strategy and role-playing elements in a captivating world with a persistent storyline. Also, gamers will get a special treat this week as Toyota brings to life one of their newest model of cars in “Yaris,” the first dodger/shooter driving game on the platform, for free! Both games are available for download this Wednesday, October 10, 2007 at 9:00 a.m. GMT (2:00 a.m. PDT). “Puzzle Quest: Challenge of the Warlords” delivers classic puzzle-game action paired with an epic story of good versus evil. The…