Though perhaps quite a familiar name for those in North England, Moloch are still relatively unheard of considering they represent some of the best Sludge the British Isles have to offer. One of the Moloch dudes also runs the fantastic and essential 'Feast of Tentacles' label/distro. News is they've got a spilt coming with Meth Drinker which I expect will make Zero Dark Thirty's depiction of torture seem like Sesame St.
This is all freely available so chuck a in quid or two!
2008 - Moloch
2011 - Posession