You can't lose either way. When Wes Philips reviewed the DV-970H, he thought it was a pretty good player, but when he plugged the coax SP/DIF into a good DAC, it turned into a seriously good transport and competed with much more expensive setups.
03-20-08: Elf73
I have a Monarchy M24 Tube DAC preamp.. you think it would be better to use the Monarchy DAC or the Oppo players?
The 980 is a significant improvement over the 970, so its internal processors probably narrow the gap. I use mine in a 7.1 channel setup, and I slightly like the Oppo's internal surround processors over the one in my Boston Acoustics AVP7 (a 7.1 ch pre/pro based on the Sherwood Newcastle, which is also the basis for the Outlaw 990).
Still, I think you'll have fun comparing and picking.