I currently own a 56" Samsung DLP that I've had for about 2 years now. I really like the picture and all but it's getting to that time... upgrade!!! I have been looking at the 50 and 58" version of the Samsung plasmas (model 550 I think they are) My question to all you experts out there is this, will I notice a huge upgrade in PQ going to the new plasmas? I use my TV for Blu-Ray's (through HDMI on my PS3) and watching sports on Cable (Time Warner cable, going through component but can switch to HDMI if it's better) Also, if anyone can chime in about any of the Samsung or other companies LCD screens that'd be great too. I'm just trying to get a good idea of what to expect. Thanks.