FYI, there is a good alternative way to gain IP control. Pay a few $$$ for a GlobaCache GC100 and use the TCP/IP to serial conversion that provides.
I've actually been thinking about buying a 105D. But I am finding it hard to justify the cost just for a BD player. My Sony BDP N460 works just fine from what I can tell. Not sure the Oppo will be that much better of a picture. I would like feedback from others here. The only other reason to buy an Oppo would be for the benefit of SACD or DVD-Audio which my Dune handles the FLAC rips just fine.