I was very hot on this idea about half a year ago and found a very long thread on AVS about using the 83SE and DLNA. It is possible, but limited, buggy and not supported by Oppo. The thread has incorporated the 93 and 95 since they came out. Some guys are claiming that they found a way to "push" content to the Oppo which is ideal because otherwise you have to use the Oppo player as your controller and it's not real user friendly. As a dvd/blu-ray player they are both giant killers, best value out there.
I assume you know the 95 is the way to go if you want superior sound quality for stereo and multi-channel. It has a dedicated stereo analog output that has been blowing people away. You can get the 93 modded but there's debate as too which gives a better sound. Was it TAS that wrote up on this? I think their conclusion was that both were excellent, but different. The Nuforce gave the 93 a more modern/detailed sound and the 95 a more natural sound. But don't take that as fact, I read the article a long time ago and can't quite remember. I was going to go with the 95 until I decided to stick to stereo for now. So I went with the SB Touch and an outboard DAC. Very happy about it too.