Think I'm losing direction.... Advice please! Well happy with my Sony VA555ES, but that's started me on the upgrade thing again. My Panny DVD RA82 plays DVD-A via phono 5.1 connections, and CD via the coax........ My VA555ES wants a SACD CD player plugged into it...... My ageing Technics SL-P770 CD player wants to be connected to the amp with its never before used coax or optical outputs...... Do I really need a HDCD CD player...... DVD-A from the Panasonic RA82 is VERY impressive, but how does it compare with a good quality SACD or HDCD CD player? Thanks in advance for any suggestions.