Go get yourself "The Insider" and "Black Hawk Down" soundtracks. And pick up some old Dead Can Dance stuff while you're at it.
Lisa Gerrard is nothing short of amazing. One of the best vocalists of our time.
The soundtrack to Blackhawk Down is great. I'm going to check out the Insider. You should look into Passion by Peter Gabriel. It's the soundtrack to The Last Temptation.