Desert punk is definitely good inspiration! Blend Necromunda with Gorka Morka and a huge dash of cheap Whiskey and low inhibitions. Voila: Desert PunkAnother vote for Judge Dredd - both of them, but the new one with Karl Urban (who, frankly, nails King Chin) is best. Also worth watching is Assault on Precinct 13 (the original or the remake, but probably the original is best).
Oh, I am going to look up Desert Punk now!