You may want to try some of the more recent releases by Pram and Laika. Nice stuff...not quite trip-hop, but veering into the realm with a more abstract edge at times.One that came to mind as I type this (and it's not really a recommendation), is a fairly obscure band called Mauve Sideshow. Very obtuse & strange, very dark and highly abstract. I might have to dig that stuff out again for some late-night chills...
