I would just keep what you have for now. You could get an HD upconverter but I don't think that it will help too much with a 30" crt.
The question your going to run into when looking for a new dvd player will be to get an HD DVD or Blue Ray. Blue Ray looks as if it is going to be the dominant one manufactured right now
I finally upgraded to a Sony KV-30HS420, but what about my old, out-dated dvd player? Should I get a good progressive scan DVD player now or wait for the HD DVDs to roll out later this year?

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