I totally love Anne Dudley's work on American History X and Tristan & Isolde. Both has loads of emotion in there and still grabs me everytime i listen to it. And in combination with the movie it's even better.
http://www.youtube.com/watch?v=0GW95E7Vews
http://www.youtube.com/watch?v=ensux4CoCWw&feature=related
I still love this one from Vangelis
Heck! The whole soundtrack is great, awesome combination of orchestral epicness versus ambient electronical styles
http://www.youtube.com/watch?v=JAwo7DPUFUM&feature=fvw
And offcourse, Thomas Newman and Road To Perdition are on my favourites as well. I adore the bagpipes in this tune
http://www.youtube.com/watch?v=SAfZth0PhZM
And last but not least i think the soundtrack from 28 Days Later.It was in the sequel too i believe, which i think is even better than the first one, really got my heart bouncing in my neck. Its really great and effective as fuck, especially this song is really grabbed me by the throat when i watched the film. Chills me to the bones and back.
http://www.youtube.com/watch?v=ST2H8FWDvEA