what about the Orion XTRPRO2400....i think tahts what its called. but that memphis would do. or you could get 2 hifonics z1000d's or 2 jbl 1200.1. there are many possibilities.
I think for the HDs I would get the Arc 2100 , Can be found at a half way decent price , I tried 7 amps then the arc , WOW really brought them to life !