I haven't posted here in a while but thought I'd chime in since I just replaced my oppo player with the new Samsung 1200 blu ray player. My display is the Optoma HD70 budget DLP 720p projector onto a high contrast 84" grey screen.

First, the samsung player has the latest HQV Reon processor for supposedly superior up converting when compared to the oppo which uses Dcdi, which is also highly rated. For HD films this is bypassed. I output my signal in 1080p/60fps and let the projector down convert the signal to 720p which works great. The picture is really sharp, to the extent that SD DVD's even when upconverted look soft. I have tried the different outputs and found that outputting in the highest resolution works the best.

My only advise, and my projector is not capable of this but many of the newer displays are, is to find one that accepts a 1080/24fps imput, this is the native resolution on the Blu Ray and HDdvd discs and makes 2:3 pulldown process unnecessary.