I recently bought a 46” CRT rear projection TV that has an HDMI port (a Sony KP46WT520)
I have a standard Sony DVD player (model DVP-NS50P) connected to it via component video cables using progressive scan at 720.

If I bought an “upconverting” DVD player that connects via the HDMI port and plays at 1080i, will I get better video quality (not in theory, but the actual human viewing experience?)
Upconversion to HD quality sounds like a good concept, but to the best of my knowledge DVD’s aren’t at a high enough resolution so I don’t know if it will really be any better.

So – 720p vs 1080i for viewing DVD’s: will it look any better? Is “upconverting” marketing BS or can it truly improve the the DVD viewing experience?

I’m considering something like this (when it comes on sale, of course…). Other suggestions are welcome:

Upconverting DVD player linky

Umm, I'm not really a Sony fanboy. How I ended up with all this Sony stuff is a long boring story.