Gary, the Rythmik F8 (dual 8" woofers) or FM8 (the same, but with a midrange x/o frequency for those wanting not just bass, but also midbass from the sub) at around $850 would be a great choice for your speakers.
As for high-filtering your mains, you could consider the First Watt B-4, a reasonably priced (Reno Hi-Fi sells it for a grand I believe) great sounding active x/o offering incredible flexibility in frequency (every 20Hz up to around 1250Hz iirc) and slope (1st/2nd/3rd/4th order-6/12/18/24dB per octave)! Nelson Pass builds it with discrete components, no IC's or OpAmps.