You're right, a good number of HDTVs are sub 1k, I saw a 20" for $299 today - with HDMI input; I'm surprised how quick prices are dropping. My comment was based on the OP's 50" plasma.
I'm curious why it says it won't take a computer feed. What's the model #?
A lot of times, when an OEM says that a certain input isn't for computers and such, it's because they don't want the hassle of having to support that type of use. Imagine the call center fielding a million calls from customers trying to hook up their computers and having problems. How are the OEMs supposed to support the infinite numbers of PC configurations?
It's mainly a catch-all. You call up with a support question and they say, "sorry, we don't support PCs."
With that said, as long as the TV passes the correct EDID information on a particular input, new Macs should be able to figure it out and offer the correct outputs.
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