I couldn't disagree more about the 'consumer-marketed' product such as Denon. The Denon DVD-2200 and 2900 are both using the Silicon Image SI504 chip, the same processing chip in the Ayre, and Arcam 78 and their DVD27 ---and a few others, I think Meridian also uses it?
If you go to the home theater dvd shootout you'll find the dvd players using the SI chip almost always blow away everything else - having said that, the Denon 1600 with the Faroudja chip (i don't know which one) came out in the top three dvd players tested.
Personally, I think Arcam dv78 is probably your best bet - and the Arcam 78 and 88+ both do progressive scan - but not the plain 88 as I understand it.
Best of Luck