In the end I opted for none of the televisions I had originally planned for, instead opting for the 42LGX, the thinner version of the 42LG60. It supposedly uses an IPS type panel, and after checking viewing angles and measuring input lag, I'm inclined to believe it does indeed use one. It's one hell of a TV, I love it a lot. A few of its gimmicks I'm admittedly not to fond of like the intelligent sensor, especially in a dark room. Every time there's a bright scene the TV senses its own light, turns itself down to compensate, then when its dark again, it cranks the brightness back up. Rinse, lather, repeat - the end result is a TV that keeps dimming and brightening itself.

I also noticed something interesting while watching standard definition stuff (especially DVD's) - they all look like soap operas. By that I mean they have a kind of gel-like quality to them that I found somewhat amusing, but I'm not overly bothered with it. I'll probably pick up an upscaling DVD player at some point.

One more potential concern is how hot it gets - it's incredibly warm to the touch, but I'm going to attribute that to how thin it is, and assume that most LCD panels would get that warm in such a tight space.

Overall though, I love the panel. The sound is incredible for a built-in setup, the picture is great (not overly bright like most Samsung units I looked at), and overall it just does it for me. I almost regret not doubling my budget and picking up the 47LG90 (LED backlit), but I'll probably just wait for OLED to become mainstream before I get a new TV.