Expect the cables and warranty to set you back another 1K or so, but the LCD's are the way to go. We've got a 50" Phillips LCD downstairs and a 42" Plasma upstairs, and we barely ever watch anything upstairs anymore.
Plasma's tend to fade because the compression of gasses weakens over time. Also they don't work as well at higher altitudes, the picture washes out. LCD's won't fade, when the bulb goes you just replace it, which is not too expensive and an easy fix.
Get the LCD, you'll love it...