I've heard the Toshiba HD DVD players top even the Oppo for SD DVD playback
...So that's a good option for an extra Benjamin or two. Plus you can play HD DVD's.
So that would be my choice if I could do it all over again.
I'd probably pass on the Oppo. Last time I checked the A2 was around $379
and you could get 3 free HD DVD's, which really narrows the price gap
I'm currently using my XBOX 360 for HD DVD's and the add-on player's PQ is great,
just hasn't got any of the new HD Audio capabilities that the Toshiba's offer.
I have not tried an Oppo,
but have had Sony and Yamaha Progressive scan DVD players
a Pioneer Up-Converter, XBOX 360 and most recently my PS3
For screen shot comparisons :
The PS3 is by FAR the best looking SD DVD player of the bunch even at 480p, has HDMI 1.3
plus it plays Blu Ray Movies and Games, and I even use it for wireless web browsing
on the 50" plasma from the living room couch now that I've got a wireless router,keyboard and mouse
The Playstation Network is totally free for web browsing, game demos, movie trailers, and on-line gaming.
I got the 60gig unit that cost a little more, but for the built-in Wifi and larger HDD, its worth it.
I've ripped dozens of my favorite CD's onto the HDD,
along with a bunch of digi photos and game demos I downloaded FREE from the Playstation Network.
Even if you're not a "gamer"
...Ripping up the asphalt with HOT cars from the free Gran Turismo HD demo
is enough to convince most people I know to at least go for test drive.
(Yes! it's not a real car in the photograph it's a game !
PDP-5070HD/Toshiba HD DVD/PS3/HD STB/ HDMI 7.1 AVR would be a perfect combo
No need for stand-alone SD DVD player.