ALl the suggestions are very good. I'd like to add to your list though:
Speakers -
B&W N801, N802, 803D, 802D, Wilson Sophia(already recommended)
Amps(you need big, powerfull, smooth amps)-
McIntosh MC501 monoblocks, Krell FPB300 and up, McCormack DNA-500, Levinson.
But you didn't mention the room size, preamp, source. Is the room treated? What type of sound do you like? What is the budget for the amp?