Xbox Live Marketplace - Beautiful Katamari demo, Hexic 2 and more

In the wake of last weekend's BioShock demo release, it's been kind of a lean week on Xbox Live Marketplace - though even a lean week translates to lots of stuff to buy and download and even some noteworthy freebies:

• Xbox Live Arcade: Hexic 2 ($10) and Ecco the Dolphin ($5)
• F.E.A.R.: Bonus Map Pack (free)
• Lost Planet Map Pack #3 (now free; previously for purchase)
• Guitar Hero II My Chemical Romance Pack ($6.25)
• Demos: Beautiful Katamari (free)
• Game Videos: All Pro Football 2K8, BioShock TV spot, Jericho, Guitar Hero II promoting the My Chemical Romance Pack, Madden NFL 08 and Skate (all free)
• Themes: Army of Two, Boom Boom Rocket, Marathon: Durandal, Madden NFL 08, NASCAR 08 and Skate ($1.88 each)
• Pictures: Eets: Chowdown ($1.25), Eternal Sonata ($1) and Marathon: Durandal ($1.25 each)

On top of all that, 300 is now available for HD rental if you can part with $6 and 5.3GB of hard drive space long enough to download and watch it...