- Generally suited to a darker room
- Motion resolution and clarity practically as good as that of a CRT TV (as opposed to LCD TV's, where there's motion blur, even on the most expensive models) *nothing that gets in the way of enjoying games/movies though*
- Image retention continues to be an issue, unless you go for the *break-in* period. However, this varies from model to model
- Higher emission, flicker can be detected in some cases, so there's generally more eye strain
- Consumes more power
- Resolution may not be as sharp as an LCD/LED TV, unless you get a very expensive model
- Superb black, greys and whites. Again, closer to CRT TV, and somewhat better than LCDs or LEDs.
- Practically all LCD and LED screen are flicker free, so there's very little eye strain
- Great for gaming in a well lit or dark room
- If calibrated and set up right, can display very vivid and life like colors. Black/greys/whites almost as good as plasma screens
- Consumes very little power
- Generally live longer than plasma screens. No retention or burn-in issue whatsoever. Also, there's no *break in* period. You can use your screen on high backlight or high contrast settings from day 1
- Refresh rate enhancements can somewhat reduce the blur or choppiness you may feel in 24 fps movies or 30 fps games. But mostly, it can look unnatural, adds lag, and may lead to certain visual artifacts
That's about all I can think on top of my head. I'm no expert, so if I've made any incorrect statements, please point out. Also, OP.. there is no need to get expensive screens that boast a lot of refresh rate/motion enhancements (like Tru Motion or Motion Flow), as they do nothing to improve gaming experiences. The X360 is a 60 Hz console, so as long as your TV is 60 Hz, and has a response time of 10 ms or less, you're all set. Also hook it up to your console through HDMI only for the best experience, and keep all enhancements off. Set reference levels to expanded if your TV can handle those black levels, and color space to Auto.
So bottom line is this: if you don't mind the image retention issue, the flicker (some folks can't even detect it) and eye strain...but want maximum motion clarity and resolution...go with a plasma.
If you don't mind the blur, and it is by no means excessive.. and also want a perfectly stable image at 60 Hz with no flicker, get an LED/LCD screen.
Cheers and and happy gaming! Let us know what TV you're getting!