Ok back to the ceiling fan issue, I went to the attic and took some pics as promised.. THere are 2x4's running down the ceiling. See pics. Basically I could either climb up the attic and install some bracing myself, or hire a contractor to do it, or use a gizmo that I purchased (and was looking to bring back to the store) to install fans when no bracing is available.
I have a hard time to use the gizmo thing since I cant visually confirm it is engaged properly in the studs, and also its nearly impossible to insert in the electric box hole without struggling and risking the ceiling freshly painted.
I am considering going back in the attic and climb up the ceiling and screw a 2x4 between the studs.. That way, it will be reliable. Only I am scared to go through the ceiling and fall down. I would not survive 25ft... Any chances this happens? In other words, do you think this structure can support my weight (200#) without buckling, breaking or twisting?