building new system, any suggestions or comments

after debating a long time between monitor/sub combination and full range speakers, decided to give full range floorstanders a try. i already have everything exept the speakers. i listen mainly to jazz and vocals, so i dont think i will need my rel strata anymore. 30hz should be enough.
system:
classe cdp-3
classe cap-151 (using as preamp only)
classe ca-300
vandersteen 3a signature (looking for them)
acoustic zen matrix reference II xlr (between pre and cd player)
acoustic zen matrix reference II rca (pre and amp)
ps audio power cords.
monster power conditioner