May I suggest trying this search in Google:
site:last.fm/music intitle:"tags for" "ambient" "techno" "dub" "chillout"
It might lead you to some new stuff you might like
Here are some I've found that might be akin to what you're looking for (that hopefully you haven't already heard of...)
Intrusion looks interesting.
These ones aren't quite as chilled out, but it sounds somewhat similar...
I also kind of enjoyed Martin Schulte's stuff, even though I'm not really into dub techno. But these tracks make my mind completely blank out. So chilled they're almost frozen.