The 3D is supposed to be great, though I don't know of a movie that uses it yet. Blu-ray is supposed to have this on select discs soon and the PS3 has been confirmed to be able to run them in the future with a firmware upgrade. I really wouldn't worry about it, it's pretty useless at this time and probably wil be for a while.

As far as that Samsung, go with the 650 it's worth it for the higher PQ, 1080p, and 120hz. Though it only comes in 42" and 46" The higher end Sony's are very nice too, though the Sammy's have come down in price and are a way better value at the moment. If you want Plasma and cost isn't an object, get a Pioneer Kuro model, the Panasonic's are nice too.

There is a lot of decent LCD's out there for sure, though I would definitely reccomend a Bravia or a Sammy.

this TV also have a native 1080p ... is there any difference between native & true 1080p ? if there is then i will go with the panasonic one.

Plasma's have a deeper black level in general, which equals higher contrast, and a better picture. Though the new LCD's are right up there with them now. I honestly reccomend a LCD these days, as long as you are getting a decent newer model. If you want huge, plasma is probably a better bet due to cost.

Don't plasma's have screen burn with video games i.e. if you pause your game the picture can permanently be burned into the screen.

 what i dont like in the LCDs is the blur thing and even with the new 120hz technology there is still ablur  for that i want to go with the plasma ... but also the plasma have disadvantage .. its the resolution .. but i want to know is there any big difference between native and true 1080p ?? because the samsung that i found have a native 1080p.

 but i read that the new models have anti-burn system ... thats mean its still not efficient ??

Yes, Plasmas are not as bad as they were in terms of burn-in. On the other hand, LCDs are also overcoming the disadvantages they had. From what I see, current LCD and Plasmas are not that different from each other, except in terms of price and power consumption (LCDs have the advantage on both).

Go to your local electronics shop and compare the latest Plasmas to the latest LCDs, then you'll have a pretty good idea of what to expect. That's the good thing about TVs, there are so many shops demonstrating them...

lcd is the best for gaming.

the trick is, that ALL digital tv's are naturally progressive. Unless you absolutely want 60 Frames a second(with games you do but with movie, I think now they do 24Frames to keep it matched to the source.) you don't really need 1080p 1080i would be basically the same. However most 1080p sets have smaller pixels and sub pixel layers to create a better image but the resolution for 1080p and 1080i are the same exactly. The benefit comes from higher cost models tending to include 1080p where cheaper models only have 1080i or 720p and the 60 frames.

on the subject of burn in, LCD displays these days have almost eliminated the problem completely Plasmas still have it but you'd have to leave a static image up for a good long while(possibly hours) for it to burn in. If you lower the lamp light level you can even decrease the chance of burn in, lower power consumption and help enhance the black levels on an LCD.

i check the stores and i found some good TVs but still confused which one should i choose.