Harmonix has promised new downloadable content on a weekly basis for their just-released Rock Band and apparently they included launch week in that timetable. Oh yes, there's plenty for you to spend your spacebucks on this week but there's also a little something for the cheapos - a freebie just for Xbox 360 owners:

Content: Halo Theme Mjolnir Mix
Price: Free
Availability: Not available in India

Content: Metallica Pack 01
Price: 440 Microsoft Points
Availability: United States

Content: Queens of the Stone Age Pack 01
Price: 440 Microsoft Points
Availability: United States

Content: The Police Pack 01
Price: 440 Microsoft Points
Availability: United States

Content: "Blackened"
Price: 160 Microsoft Points
Availability: United States

Content: "...And Justice for All"
Price: 160 Microsoft Points
Availability: United States

Content: "Ride the Lightning"
Price: 160 Microsoft Points
Availability: United States

Content: "Sick, Sick, Sick"
Price: 160 Microsoft Points
Availability: United States

Content: "3's & 7's"
Price: 160 Microsoft Points
Availability: United States

Content: "Little Sister"
Price: 160 Microsoft Points
Availability: United States

Content: "Synchronicity II"
Price: 160 Microsoft Points
Availability: United States

Content: "Roxanne"
Price: 160 Microsoft Points
Availability: United States

Content: "Cherry Bomb"*
Price: 160 Microsoft Points
Availability: United States

Content: "Joker & The Thief"
Price: 160 Microsoft Points
Availability: United States

Content: "My Sharona"*
Price: 160 Microsoft Points
Availability: United States

Content: "Bang a Gong"*
Price: 160 Microsoft Points
Availability: United States

Content: "Juke Box Hero"*
Price: 160 Microsoft Points
Availability: United States

Content: "Fortunate Son"*
Price: 160 Microsoft Points
Availability: United States