Just two things I'd like to add:
First, you have to know that SACD players cannot output sound to your receiver in the digital domain, Sony (which created the format) won't allow it. You have to run six analog RCA cables from your player to your receiver. Therefore, many things you take for granted from your receiver have to be done by your player. For example, bass management. I have a Denon 1920 myself, and it does bass management, but the crossover frequency is fixed at 100 hertz. A lot of those universal players have fixed frequency bass management like that, but some have a crossover at 120 hertz, which is worse if you ask me. Players with a configurable crossover frequency are a lot more expensive than the 1920. Make sure to check the bass management and speaker calibration features of the players you shop for.
Second, I'd like to ask people why it is that they dislike dualdisc that much. I used to think that dualdiscs were like DVD-Audios, except that they dealt with the biggest letdown from that format: the lack of compatibility with CD players. I admit I was pretty disappointed last week when I bought a dualdisc and the DVD side only contained Dolby Digital, no MLP. However, I read that this is only a habit of Sony's. Therefore, NEVER buy dualdiscs from Sony BMG. However, my Nine Inch Nails dualdiscs are remarkable, and their DVD side is a full blown DVD-Audio. I'd love to have more disks like that, and I prefer that to normal DVD-Audios any day of the week.