I liked the soundtrack for the first Transformers movie, and from what I've heard of the new movie, it seems it will be pretty good as well. Yes, I'm a hopeless Linkin Park fan.
Also, Pan's Labyrinth had some good sound, though I do not know any of the artists/composers *shrug* I liked the nightmarish dark effect the sound had, it gave the different scenes in the movie the sort of "feel" I think Guillermo Del Toro was reaching for, as this movie was a lifelong thing of his. Pretty well done if you ask me. And the lullaby I could not get out of my head for weeks!
I know there's more, but I just can't think of them at the moment, heh. There's not much thinking when it's THIS hot! I'll post them as my poor little brain cools off, lol!