I just saw this TV in Fry's this weekend and was REALLY impressed. I too compared it to the 5 Series plasma, as well as the new 5 & 6 series LCD, and this one DEFINITELY seems like the best bang for your buck. Up until now, I was thinking I'd be going LCD, but viewing even the newest Sammies A550 and A650 series LCDs I just can't do it. LCD's still look too grainy to me, even though they've improved tremendously. Like bjdupuis said, I don't think 1080 is worth the extra $1000, or even $500 for that matter. Just my opinion of course. I've been looking at flat panels for like a year now, and I think this one is for me. I'll report back as soon as I get it.
One question bjdupuis, have you tried hooking it up to a pc yet? I've read some plasmas in the past have had issues with pc hookups. Thanks for the info guys.