North is pretty reliable for Hard Techno (Marks a regular there). They are holding nights at Lakota in Bristol now, used to be at the Void in Stoke but thanks to Golden (unbelievably bad House and Trance club) this isn't possible at the moment.
Brum is sound, both the Hog and the Jam can put in a good performance. Inukshuk is pretty good, Techno in the main room which gets hard towards the end. Also in Brum starting on 13 Sep. at Radius Insurrection is starting back up again which is a good Techno night.
Oblivion in Leicester, if it's still going, rocks as well. Heard some good stuff about Hard Techno in Scotland as well but haven't been yet.