To start with I only have approx. $600 to spend. I was looking at the Onkyo HT-S6100 HTIB. However, I have read many post that say the box system is not the way to go. I have no problem just purchasing the receiver and a couple of speakers to start out and then adding the other speakers later but I have no idea where to begin or what to purchase. The room where the surround system will go is fairly big and open. The room is 15 x 20 but is joined by a dining room and kitchen. The room also has high ceilings. I have posted some pictures of the room. I will be connecting the receiver to my 50" Panasonic and my xbox. I appreciate any and all advice that you can give me.