[rincewind]

I'm also going down this route the past month or so (mixed with minimal electronica), check out my last.fm profile for what I've listened to over the past month or so.

I'm surprised, noone's said Robert Rich or Ian Boddy yet.
If you love Atrium, you'll like the album "Stalker" by RR and Lustmord (whose solo work is also very cool). Ian Boddy's "Outpost" is also pretty cool. And I'm ASSUMING from you're nickname that you know Synaesthesia. Desideratum is one of my faves of theirs. Murcof are also interesting minimal. If you wanna have some weird dreams, check out Robert Rich's Somnium (it's something you'd put on to sleep to, not actively listen to). Read about his nighttime concerts on wiki.