I use Bi-amplified (with slope adjustments) Genelec 8020C's on K&M stands with the Isopods.
Unbelievable power and clarity. Solid metal cabs: Trust me, no sub needed.
I might change to 8030's in a while.
Neg points: Expensive.
* Now upgraded to Genelec 8030C's * Absolutely awesome. Power and clarity.