Ok, so you have a fiar bit of SD content, moderate gaming use, no PC use, and sunshine that has the capability to light the room if not shine off the TV. Since you sit 10' away if not further, IMO the main advantage of LCD which is high resolution is very much negated because you're sitting far enough away that you likely won't notice on a TV that size. Also SD on such a high resolution isn't very great.
I would recommend that you at least look into a 42" HD plasma - since you're not using a PC the rectangular pixels aren't a big disadvantage. The black levels on a plasma will be quite a bit better than on the LCD and in a lit room (esspecially brightly lit by sun) that's even more important. However, if there's any chance that the sun could reflect directly off the TV back to you at any time (can check by putting a mirror on the wall) then you're locked into the Pioneer plasma's which have a very unreflective screen, or else an LCD which also has an unrelective screen. Of course if the reflection won't be coming back to you then you can't go wrong with a Panasonic plasma.
Sorry I'm not all that familiar with LCD's but with the info you've given someone else should be able to chime in on that side. I know the high-end Sony's are supposed to be great as are the Sharp Aquos line.