Xbox Live Marketplace - Poker Smash, free cars and more sweepstakes

This week's Xbox Live Marketplace update includes some free cars for Need for Speed ProStreet and Test Drive Unlimited, plus three new freebies that enter you to win prizes if you download them. There's a picture pack for Rock Band that registers you for this weekend's play-to-win sweepstakes, a Lost Oceanic Airlines theme that's hard to find and a demo for Poker Smash:

• Arcade: Poker Smash ($10)
• Rock Band songs ($2 each) "Calling Dr. Love" by Kiss, "Roam" by The B-52s and "We Care A Lot" by Faith No More
• Dark Messiah of Might and Magic: Elements maps, classes and weapons pack ($5) includes paladin and warlock for the single-player game
• Need for Speed ProStreet Stage 4 Performance Blueprint Bundle (free) with the Nissan 240 SX, Nissan GT-R. Mazda RX-7 and Mitsubishi EVO IX
• Test Drive Unlimited Volume 6 pack ($4.38) with the Audi A4 Touring Car, Cadillac Sixteen, Dino 246 GTS, Lamborghini Diablo GT, Nissan 350Z Roadster 2004, Pontiac Solstice and Triumph Dayton 995i, or download the Nissan Roadster alone (free)
• Game Videos: Army of Two, Burnout Paradise and Rainbow Six Vegas 2
• Themes: Poker Smash, 3D Abstracts, Deep Space, Grey's Anatomy and Major League Gaming ($1.88 each) plus a free Oceanic Airlines Lost promo that enters you into a sweepstakes if you can find and download it (it's not under Lost, so look for banner ads)
• Pictures: Rock Band (free), Army of Two ($1.25), Boogie Bunnies ($1), Metal Slug 3 ($0.75), Poker Smash ($1.25), Grey's Anatomy ($1.25), Major League Gaming ($1.13) and ScrewAttack ($0.63)

Next week look for Discs of Tron, the Xbox Originals Ninja Gaiden Black, Pirates and Black, a Project Gotham Racing 4 expansion pack and more Rock Band songs (though no word yet what they'll be)...