Halloween outdoor showing is probably off... weather has turned too soon. Had to scrape my car windows this morning. I can still show it indoors, though, so it's not a total writeoff. The living room has one big offwhite clear wall that worked pretty well in tests. The surround sound system is in there, too, though that may be odd since the channels would all be reversed using that side of the room for viewing.
So I look towards next year. The main goal is to make it easy to set up and take down. Right now I'm using an improvised setup of sawhorses/ply table, an old receiver and speakers, and a plastic lawn table for the projector. It's okay but I want something small I can just roll out but still has enough power to work outside. I'm thinking of building a wagon for this. Take a car stereo and power it off a PC power supply... I have an old
amp and a couple boxed car speakers that were good when in use. Shouldn't be hard to build a wagon that mounts all the hardware, stores the speaker boxes, and has a little place on top for the projector to sit. Then I can just wheel it out, put the projector on top, pull the speakers and place them, and fire it all up. At the moment I'm thinking a modded Xbox running XBMC would be great pending a little research into exactly how XBMC displays over VGA.
EDIT: or I could just buy
this.