Thanks for the comments, I most likely will be ordering the Oppo-980 player for the 480i output.
As it makes life easier, and especially more convenient, my strategy has always been to make the receiver the upconversion hub of my home theatre setup. It was for this reason that I shelled out the extra bucks for Onkyo Tx-905.. it has the Reon upconverting chip, which should be superior to most DVD players.. not sure on the tv's, but I suspect the Reon is superior to the upconverting capabilities of my HDtv (61" Samsung DLP)
From what I've read, only the Realta chip is better, and you have to spend some serious money for that level.
I do intend to play around and compare picture quality between upconverting on the DVD player, the receiver, and the HDtv. As far as cables are concerned, I only use BlueJean's flagship cables. Speaking of BlueJeans, 4 months ago, a 7 foot HDMI cable cost around $30. Now, the same cable is listed for less than $20!! What gives??