I have to agree with Sean - the Dynaudio's will soak up lots of power. The more you can afford to feed them the better. The Monitor Audio's are a lot less fussy but you're talking two totally different sounding speakers.
My suggestion would be to ditch the idea of separates and get a really good integrated amp. You will save $$$ on interconnects and power cords.
My suggestion would be to ditch the idea of separates and get a really good integrated amp. You will save $$$ on interconnects and power cords.