Ergo proxy and Serial Experiment openings (and Ending for SEL). Also, Texnolyse Opening made by Juno Reactor, someone who have done some work on the matrix soundtrack.
And the French opening of Sakura Card Captor, but only because of nostalgia. It don't fit the show at all, it's bad music, but i like it anyway, even if the Japanese openings are way better !
Kind of off-topic, but i'll always remember the face of my young brother when i've made him listen the Japanese opening of Pokemon. He was used to the french opening, despite being less than 20 years old. I doubt he will ever recover from that !