Noticing that I'm at or beyond the point of pre-planning, so it's going slower as I will need to sit down and contemplate next step instead of having it figured out beforehand.
Have bought wood for the dampingwall stops, for frames to go in front of corner sub and for pillars to hang the screen from. Also caulked around about half the floor up front, will have to do half at a time and then move the speakers to completed side. Will have to do 2nd layer drywall ceiling at least at this point, as I won't be able to change my mind later on.
Put up the triphase outlet and a normal power outlet, so those aren't hanging temporarily mid-air anymore, so that't one thing that's more complete now than in Cinema 1.0.
Did manage not to the ground fault breaker this time, instead I cut myself. Might have been a better to trip the breaker after all...