As I wrote in your last go 'round with this subject, I have owned both the 5400 and the Saturn. I respectfully disagree with Don C55'a comment that the Saturn is "run of the mill mid-fi." I thought it was a darned good sounding player. I ended up with the 5400 because I wanted the SACD option. At the end of the day, though, I still listen mostly to redbook, which sounds wonderful on the 5400. Overall, I preferred (and still own) the 5400.
All of that being said, I think you'll find the 5400, the Saturn, and the Cambridge 840C to be very nice sounding. The 840C also can be used as a stand alone DAC, which is a nice feature.
Good luck .