I echo Ben's comments regarding Peter Gabriel. The man is a treasure, and his live concert DVDs are especially impressive.
I am currently listening to Eliane Radigue, a modernist French composer working primarily with ecstatic drone frequencies. Drones are frequently used in sacred Hindu music and have a whole bunch of theory around them - well worth checking out.
I am also enjoying Ravi Shankar's incredible command of the Sitar, and the devotional Kirtans of Krishna Das. I am not a Hindu, but enjoy much of their music.
Tria Bulgarka are cool too.
I find that the more I meditate and study Dhamma, the more music falls away for me. But these are my current choices