Xbox Live Marketplace - Gears of War 2 map pack, free Mercenaries 2 pack, GTA IV video and Doritos game

If you want your Xbox 360 avatars to be spiffy for the holidays, there are some new tuxedos and ball gowns you can dress them up in - just check your wardrobe for the gold stars. And here's what you'll find new on Xbox Live Marketplace:

• Gears of War 2 Combustible Map Pack ($10) with three multiplayer maps: Flood, Gold Rush and Fuel Station
• Mercenaries 2 Blow It Up Again Pack (free) with four bonus missions
• Arcade: Doritos Dash of Destruction (free advergame that resulted from that contest last year), plus Bomberman Live is on sale ($7.50)
• Xbox Originals: Raze's Hell and Sega Soccer Slam ($15 each)
• Guitar Hero: World Tour The Eagles Track Pack ($5.50 or $2 each) with "Frail Grasp on the Big Picture," "Life in the Fast Lane" and "One of These Nights"
• Rock Band/Rock Band 2 Going Country Pack 01 ($8.50 or $2 each) with "Free and Easy (Down the Road I Go)" by Dierks Bentley, "Hillbilly Deluxe” by Brooks & Dunn, "Sin Wagon” by Dixie Chicks, "Gunpowder & Lead” by Miranda Lambert and "Mud on the Tires” by Brad Paisley
• Lips winter, holiday and snow globe custom videos (free) and tracks ($2 each) "Rudolph The Red-Nosed Reindeer" by Gene Autry, "Hanukkah Blessings" by Barenaked Ladies, "Every Little Step" by Bobby Brown, "A Holly Jolly Christmas" by Burl Ives, "Virtual Insanity" by Jamiroquai, "Rockin' Around The Christmas Tree" by Brenda Lee, "Prisoner of Society" by The Living End and "Santa Baby" by Kylie Minogue and ($2.25 each) "The Christmas Song (Merry Christmas To You)" by Nat King Cole and "White Christmas" by Bing Crosby
• DDR Universe 3 tracks ($1.25 to $1.88 each, apparently offered in mega packs for $7.50 each but without song listings to know what's in them, why would you buy these?) including "All The Small Things" "Don't You (Forget About Me)" and "Every Little Thing She Does Is Magic" (among others)
• Community Games: CaveIn ($5), Cosmos ($5), EZMuze Break and House Edition ($2.50), GraphSpacer ($2.50), Light Catcher ($2.50), Sea Blast ($2.50) and Type Attacks ($2.50)
• Demo: Too Human
• Game Videos: Doritos Dash of Destruction, Gears of War 2 Combustible Map Pack, Grand Theft Auto IV Lost and Damned expansion, Mafia II, Mirror's Edge, Shaun White Snowboarding plus Prince of Persia video strategy guides ($1 each) and The Guild holiday videos (free)
• Themes: A Kingdom for Keflings Premium ($3.13) and EndWar ($1.88)
• Pictures: Gears of War 2 (free; enters you in a sweepstakes), Buku Sudoku ($1.25), DDR Universe 3 ($2.50), EndWar ($2), NCAA Basketball 09 ($1 each) and Saints Row 2 ($1)