Totally on the fence about my G20. While I love the picture when it works, the floating blacks are completely irritating. If I wasn't so OCD (who in this forum isn't?), then I probably wouldn't care, but anytime I play a 2:35 aspect film, the flashing black bars are simply too distracting. I've watched a few scenes of the Dark Knight, and it happens quite often. I wonder what Sunshine would be like? Fullscreen films however, I can barely notice at all. Maybe once I noticed while watching Monsters Inc.
I do have to say gaming on a plasma (my first time ever) was quite nice. I'm a pretty heavy gamer, with a lot of days spent online with all the COD games, and the responsiveness of this plasma is easily noticeable. I'd be happy to game on a plasma again, but given my often 2-3 hour sessions, I do fear the IR that may result.
Sadly I can't return the TV, and only get an exchange. I don't think I want the Samsung Plasma D6500, unless the blacks are somewhat close. The Sharp LE820UN however I've saw on the flatpanelshd review matched the G20, so right now I'm leaning towards that.
Sad about my G20. Sad that I also have to package the damn thing up for the return.