There's a second trailer out for Silent Hill Origins and it's got some new music by Yamaoka. YouTube version is here: http://www.youtube.com/watch?v=2p3IWbuc0Sg
Unsurprisingly, it seems Melissa Williamson is back as well.

Not too exited for the game, but I am hoping for a good soundtrack.

EDIT: In an interview with GameSpot the producer of the game mentions that Yamaoka has composed fourteen tracks for the game, four of which are vocal tracks.

Very good news! I have to get that soundtrack.

great trip hop tune.  is the rest of silent hill scores often like this? and is Yamaoka the sole silent hill composer?

nvm, wikipedia answered my questions

Awesome!  New Mary Elizabeth McGlynn vocals!  Greatly looking forward to the game and soundtrack.