Budget Approx $5200 Wanna go big as I have a big room (from couch to TV will be 22 ft) to fill so 70 inch or bigger DLP. Narrowed it down to...... 72 inch Toshiba 72MX195 71 inch Samsung HLR7178 or 73 inch Mitsubishi either WD 73727, WD 73827, WD 73927 I think they are the main 3 out there and the top models for that brand? Toshiba model is $3100 but is the top of the line Mitsubishi at $5100 and 2 inches bigger that much better? I'm a complete novice and it will be my first HDTV. Looking for a bit of advice/guidance. TIA.