LCD gets my recommendation, hands down.
I have a 60" LCD now, it's not a flat-panel but it's an excellent TV. Is there a reason you must go with a wall-mounted TV? Going with a more traditional display gives you SO many more options. I bought my 60" Sony Wega HD LCD about a year and half ago for $3,000, it's a phenomenal picture and LCD technology is getting better every day.
I've been considering a flat-panel as well for our bedroom, and have weighed these characteristics between plasma and LCD:
Plasma: Burn-in risk, shorter life span, heavier & hotter machines, and a LOT of glare
LCD: Brighter picture, long life span, virtually glare-free (a big plus for me).
Now, Plasmas admittedly have excellent pictures (as long as you happen to be in a dark room with no windows
), and they have deeper blacks than most others.... But the cons listed above were just too much for me, and I think I'm going with another LCD for the bedroom.
That's my 2 cents anyway.