This Will Destroy is a post-rock band from Texas, and one of the more recent bands to appear on the post-insert-genre-here scene. However, drawing comparisons to bands like Explosions in the Sky, Mono, and Caspian wouldn't really do these guys the justice they deserve. Their sound is more ambient than Explosions at times (check out the self titled), and on albums like the Young Mountain EP, too formally constructed to conjure up any visions of Mono or Mogwai. They seem to skirt around classification, using pedal boards bigger than your living room and mixing in computer effects, expanding crescendos until the point of explosion, or building tension without ever expanding upon it, leaving you hanging on to see what will happen next.
P.S. If you're new to these guys and think you've never heard them before you very well may be wrong - songs like "Quiet" often pop up in the backgrounds of television programs - the other night I noticed it in the background of a football clip!
Young Mountain EP (2006)
This Will Destroy You (2008)
Field Studies Split w/Lymbyc System(2008)