I'm just going to throw out my agreement as well. Both displays are very good, and there are some determining factors which can affect things.
1. Will the room it is in be dark or have large windows?
2. If it has windows, will they be able to reflect off the display and hurt the image?
3. Are you willing to show a bit of care to ensure there is no burn-in? This is VERY minimally necessary.
4. Does the display need to articulate off the wall, or just tilt?
5. Do you intend/want to try 3D?
6. What will be your primary viewing?
Many of these questions it sounds like you can't answer yet because you aren't in your new space, but bright lighting behind the display causes reflections, which plasmas have a real issue with. Curtains, or after dark viewing, really helps this. Burn-in is basically a plasma only issue, but happens with cheaper plasmas only and after a lot of a static image left on screen. Like a video game marquee up for 40 hours straight. Articulating displays require a really good structural mount, and some effort to move them as the size/weight of the display goes up.
LCD wins on many of the convenience factors out there, but plasma wins in image quality by a little bit. So, there are a lot of pro/con type arguements possible for both display technologies.
I have a plasma in my main (family room) viewing area, and LCDs everywhere else in my home. I wouldn't trade my plasma for a LCD, but I don't hate my LCDs... Except maybe that Olevia in the kid's playroom.
