I never really thought of these outfits as 'post-rock' at the time, more an update on 'space-rock' perhaps, but the music of Flying Saucer Attack, Jessamine, Roy Montgomery and Windy & Carl, while diverse, certainly might appeal to some here.
Saw a band last night that might appeal to the heavier/rockish tendencies upthread going by the moniker Horse Torso. Two guitarists, bassist and drummer (who seemed to be directing things) and in the vein of artists like Don Caballero, U.S. Maple, Cheer-Accident and Ativin. New group without an LP as of yet, but perhaps one to watch.