I have a 42" plasma and view it from about 8'. It's perfect. I'm not sure my eyes could handle the 50" at 6 or 7 feet.
At least with the SXRD there would be no screen door effect. I think the DLP may give you one.
I'm looking to buy an HDTV and the two I really like are the 50" Sony SXRD and a Samsung 50" DLP. The problem is I don't have a very large room for them and my viewing distance will be between 6' and 8'. I've never had a TV of that size before, does anyone else sit that close to a TV that large?

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