Which TV for $3k??

[JENKS]

Ok guys here's the deal. My living room viewing area is 12 feet from the tv. The room is never brightly lit. I play ps3 games and blurays 10 hours or more a week and the rest of my viewing is hd content on directv. I currently own a 56" samsung dlp that is 3 years old. I just replaced the bulb and have no issues with the tv but am ready to step up to newer technology. I have $3k available on my bb account and could pony up more if necessary. I want at least a 55" tv. I have a two year old samsung plasma 50" a450 I believe, up in the bedroom. I hate the image retention! Are the higher end/newer plasmas better with this issue than they were? I am scared to drop that kind of cash on a plasma and be in the same boat. What would you buy and why?