If there's anything fans and non-fans of Halo can agree on -- Halo has always had fantastic scores to accompany it.
Along with the release Halo: Reach, the game's Original Soundtrack composed by Martin O'Donnell and Michael Salvatori is now available by way of licensing by Microsoft Game Studios and Sumthing Else Music Works. The Soundtrack can be downloaded from Sumthing Digital www.sumthingdigital.com and iTunes. For the 2-disc CD set, you can get your hands on that on September 28th at retailers.
[Via Press Release]