I have a D10proII, it is indeed a horse, much better than a DA-P1. It does take a SPDIF input, you just have to have the cable for it, unfortunately it's no longer made and harder to find than the AES/EBU cable. I bought my SPDIF cable from Oade ~5 years ago, it is an original Sony cable.
But I'm thinking that the proI doesn't even have a digital input, this was one of the improvements for the proII (along w/ absolute time), but I may be wrong. Definitely something to look into before you buy one. And like damon says, the dcp-88 is a must.