hey dude..... sorry to jack this thread, but I saw the LN52B750 for sale too.... I went to Visions to see if they could beat fs price and they don't carry it, but they offered the Sony KDL46XBR9 for the same price ($1788) but you have to buy the extended warranty which becomes a credit if you don't use it.
After looking at both tv's specs, they are pretty much the same. Only decision needed is do I want a Sony or Samsung? I don't know which one to get.... The sales guy was totally pitching the Sony saying that XBR is the shit, but I personally have liked Samsungs in the past. Anyone have any helpful input?
But in regards to your 3, I would go for the 750... I think it's a pretty good price for the quality you are getting. Or if you want a Sony.... head on over to Visions and get the same deal I got.