I have been following his music as part of movie soundtracks for few years now. No doubt, he is one of the living legends in putting in some of the finest background score out there.
I watched Bad Lieutanant: Port of Call New Orleans yesterday. Awesome movie. I would suggest you to go forth and give it a shot. You might like it, you might fall in love with it or you might just disregard it. But its one of those movies you should not miss. After so many years, perhaps Nicolas Cage got a movie which fits his characteristic frown. He gels into the script so well - you think that the character Terence McDonah does and should exist. Of course you might question their ways of action but none-the-less you would love the addiction.
