Harmonix and MTV Games have announced that a stellar first line-up of weekly downloadable content for Rock Band will be available before the end of 2007. Beginning on November 20th, fans will be able to purchase 3-song packs from Metallica, The Police and Queens of the Stone Age for a suggested retail price of $5.49 per pack or $1.99 per track (440 Microsoft Points per pack and 160 per track for Xbox 360). Fans can expect more music every week through 2008 with suggested retail pricing varying from $.99 to $2.99 per track (the equivalent of 80 to 240 Microsoft Points for Xbox 360), with the vast majority selling for $1.99 (160 Microsoft Points for Xbox 360). Check full story for details - Rock Band will hit the store shelves in North America on November 20th, for Xbox 360 and PS3 - the PS2 version will be available on December 18th.