I am seriously considering purchasing a new TV. The model I'm leaning towards is the Mitsubishi WT46807. Does anyone have any opinions of this model? I like the fact that it is 46" but still a tabletop (very lightweight). Obviously, HDTV's and HDTV ready TV's will become much more affordable over the next few years. My question is whether or not the quality of the sets will improve substantially. Would I be shortchanging myself if I purchased this Mitsubishi now? Will the picture quality of HDTV's be a lot better 2 or 3 years down the line?