I am upgrading from my Hitachi 42pd5200 plasma [only good with daylight scenes]. I have been looking at a panasonic 42pv500 and the current 42" pioneer xde range. Panasonic has good blacks,contrast, shadow detail etc. Pioneer has nice smooth image but grey blacks. Has anyone owned a plasma prior to a rear pro dlp set and found the dlp to have better picture quality? 1] please list any picture artifacts such green dots in dark areas, false contouring [colour banding] in smoke or solid blocks of colour or any kind of background noise [pixelation] Please let me know which set is best out of tosh or samsung?