I've read some of the past threads, and was hoping I could get some specific advice... I'm looking at these tvs right now, and trying to tell a difference that justifies the price jump, can someone explain why one is so much more expensive? I don't know what really matters and what doesn't. http://www.bestbuy.com/site/olspage...ments/product/olscompareproductcenterwell.jsp I have a large living room, so I need a pretty big screen. It gets a lot of natural light, but it's indirect. However, I don't know how to compare these, or if there's something about these models that I'm not thinking about. General or specific advice is appreciated.