Home Theatre design ideas

I've promised my husband he could have free reign with the home theatre room.

He came to me last night and said that he doesn't want to make the rumpus room the home theatre room any more, he wants to make the living/dining room the home theatre room, and he wants to do this:




The guy who built this home theatre - in his garage!! Gives pretty much step by step instructions.
http://www.avsforum.com/avs-vb/showthread.php?t=574704&page=1&pp=30

What do you think? should I give up my living/dining room?