Dear JYMC,
Yes, you are correct that you are not much of a technical guy. The digital out connection from any sacd player only outputs pcm signal, or cd signal. The only exception to this is if a player has HDMI output. That will allow you to send a DSD signal to another HDMI equipped item, either a dac or AV receiver with an HDMI input.
Yes, the store owner in Scottsdale was correct that sacd transports can only be connected to same brand DAC, as that requires a proprietary transmission method only available to that particular brand.