In Be Tween Noise
Steve Roden used to work under this name, and released two really great CDs in the late 90's. Not really ambient, but quiet for the most part and very beautiful. He has a lot of more recent work available under his own name, as far as I know these are long out of print. Released on his own New Plastic Music label.
So Delicate And Strangely Made
Humming Endlessly In The Hush
And hey, if anyone out there has a good rip of the "Archival" 10" that Anomalous put out, I'd really appreciate it.