I THINK I have my mind wrapped around all this native res/upconverting stuff... but let me verify.
Say I have a nice set like a Pioneer Elite plasma (the 940HD to be specific) and I have not yet jumped on the HD-DVD/BluRay wagon yet. No matter what I do, the set is going to up or down convert the incoming signal to it's native res of 1024x768 progressive scan. Why would I want to purchase an upconverting DVD player? Shouldn't the scaler in the Elite be better than whatever is in the $100 Samsung/Toshiba/Philips/etc unit that I buy? It seems like it would be better to get a high quality Elite/Denon/Oppo unit (maybe an older model?) and send a nice 480i signal from there, rather than let the cheaper player scale it once and then have the tv convert again.
Also throw into the mix a receiver like the JVC 402/702 with the Faroudja de-interlacing chip, and it seems even better to get a good 480i signal from the DVD player.
Am I wrong on all this? I guess the only way to know is to connect everything and find out... But I'm wondering about other people's experiences.