I'm sure most of you by now have heard of the upcoming release of the $298 Oppo BDP-80 Blu-ray player.
It's not upcoming, it was available for order last Monday.
If you need a universal player, Oppo is far and away the player of choice. If you're just looking for a BD player, it's a waste of money. If you need BD and SD playback, other factors come into play. The 83 has better upconversion than the 80. The 80 is no slouch, but I don't think it will be that much better than some other players that cost half as much (JVC, Panny, for example). On a scale of 1-10, the 83 is probably a "10", the 80 is probably a "9", and there's many players that are "8"'s. Is going from an 8 to a 9 worth $150 - $200? Only the buyer can make that decision. For me, it's not worth it. My Panny 35 upscales just fine on my 65" living room display and my JVC is even better on my 126" HT screen.
Heck, I bought a $59 Sherwood BD player about 9 months ago that's actually pretty decent at upconverting SD-DVD's (I'd give it a "6.5").
The only way I'd buy one of the Oppos, is if I had a need for DVD-A, or SACD, which I don't.