I think the add on is going to be $150. Maybe I read that somewhere, but I don' t remember. It' s a helluva lot more reasonable than $500, that' s for sure.
I' d have to disagree with Silentbomber and ginjirou, though. The difference between SD and even 720p is HUGE. I turned on the Pistons game today (They lost, dammit!

) and I mistakenly put it on SD ESPN, and I thought someone put Vasaline on my projector lens!! It' s the same when I watch a DVD. It just seems so blurry once you' re
used to HD!
I' m tellin' you, once you have HD in your home, it' s painful to go back!