My older bro got a Mitsubishi DLP 50 something inch. It looks fantastic. We get HDTV through our roof antenna from Philly stations and it looks fantastic. We also have some HD channels on satellite. An uncle of mine has an LCD tv and honestly it's nice but at certain angles the picture is kind of hard to see, kind of like a LCD computer monitor. As long as you're sitting head on it's nice but from steep angles it's not so nice, that's something to consider. Just like Kasey says, it's only as good as the signal, an HDTV isn't worth it if you don't live near a big city where you can get the stations over a roof antenna, or aren't willing to subscribe to the channels on cable or satellite.
Trikes
1984 Honda 200x, 1984 Honda 200m
Bikes
1995 Honda CR125R, 1985 Honda XL100 (gone), 1982 Kawisaki KZ550 LTD,
2001 Yamaha TT-R 125L, 1983 Honda XL185S (current project), 2001 Suzuki SV650S