@kennyc The Dragon ICs and speaker cables are out of my budget at this time but a 1M used Dragon PC is quite reasonable and AQ will verify for free.
The Dragon PCs are solid silver which is very highly polished. Yes, you are right a quality PC on your power amp will give the biggest reward in SQ. I haven't heard the Voodoo PCs but I doubt they can rival the Dragons.
@chauncey Yes, the most important PCs are on the Power and Pre-Amp but the improvements are incremental across the board.
I would wholeheartedly recommend you use SR Purple fuses and a Master fuse, if you don't already. I use my Master fuse on my power conditioner.