Nezer
The older Sony ES players were fantasitc *for their time*. The S7000 DVD player sounds very much like them and I was quite happy with it compared to ~$600 or so players in 1998. The S7000 plays CDRs fine--I'm not as certain about the ES players.
By *for the time* of course, I mean it sucks by today's standards. It's quite easy to find something better sounding for less money now.
For the digital artifacts you talk about, in my experience thus far, the Wadia 270/27ix is the only system to completely eliminate it. (I mean it's just completely indetectable to me.) I'm sure the dcs Elgar may also do this. I'm NOT sure anything else does. Wadia actually finds and filters those artifacts as I know you already know. I'm not sure how great a job the lower end Wadias do but what I'm told about the 861's output stage sounds really impressive. In the least, it's probably an awesome player.
The Meridian 588 on the Headroom Tour does a good job with smoothing out the silibants but the artifacts are still there if your obsessed mind is trained to look for them and then become quickly annoyed as mine is. They're there in everything else I've heard... just to varying degrees. The P3A came in really good displaying them mostly within the context of digitally remixed stuff. Accoustic stuff came off really excellent.
As you know, I've been source hunting myself. I landed on ordering the Sony XA777ES not because of its SACD capabilities but because it is hailed so widely as an excellent transport with exceptional build quality and because it is said by almost all modders to be an excellent modable player. I intend to put my source needs in the capable hands of Dan Wright at Modwright and will be posting my results and reviews as it comes along. Right out of the box, the XA's redbook earns its $2k (from Oade) pricetag and competes pretty well. However, if I'd intended to not go the upgrade path, I'd have probably spent a little more and at least auditioned the Cary 306/200 and Wadia 861. However, I'm inclined to believe the money will give me more return on the modded XA. We'll see.