If it were me, I'd get either Quad S2 or Ascend Acoustic Sierra 2 bookshelf speakers (both get raves) & stand mount them. I'd also get a pair of SVS SB-1000 or SB-2000 subs. And I'd finish that with a Marchand electronic crossover to divide signal from preamp into 2 filtered streams, hi-pass & low-pass (high for speakers; low for subs). All of this would cost ~$3-$4K maximum, leaving plenty left over for a good preamp & ~100 wpc amp.
