I may be a bit late to this party, but I've really been getting into Tim Hecker lately. The latest, Ravedeath 1972, is pretty damn dense and hypnotic. People who seem to know what they're talking about say it's nearly as good as his masterwork, Harmony in Ultraviolet. Also well worth a listen is a live show from Montreal earlier this month.
Hecker has talked about how this album is about "digital garbage", and there is a rough darkness in the raw materials that make up the music, so it seems strange that the final product has a depth that matches some of the best minimalist orchestral classical music: not that I'm putting him on that level, but Hecker's work at its best reminds me of Henryk Gorecki's Symphony No. 3 Op. 36 . . . which, if you haven't heard, you need to download and listen to right away.