Samsung is a good brand, and LCD is a well tested technology. Works great for gaming.

LED however, I have heard is not. Not yet at least.. Many LED TV's still have the problem of input lag, as previously metioned. Hopefully that will disappear over time. But right now, if it's for gaming, LCD is what to go for!

I know many people that own Samsungs, and they look great! Just remember to turn off any picture enhancing features when gaming. Some of my friends played guitar hero on that! The delay gets plain awful.

Otherwise I have some good experience with Panasonics Viera plasmas. They are pretty good for gaming also.

Me myself own a Sony Bravia LCD, and I can warmly recommend that too. The model is KDL-52W5500, and it's a beast!