I've currently narrowed it down to the Vizio M502i-B1 and the Sony KDL-W700B. Both at Best Buy. The Vizio is about $600, while the Sony is close to $750. I've exhausted myself with reviews and I like the Sony a little more. BUT, is it worth the extra 150 dollars? Also, the Samsung UN-H6350 is around 700. It's 48 inches. Opinions on the two and three?