Amplifiers for B&W 804 Nautilus - Need Help

Can you recommend some good-quality amplifiers (used or NEW, integrated or pre/power)for the B&W 804 N? The speakers have a 89db sensitity but I heard it need a decent 80W x2 to drive.

How about a tube amplifier? What's the min. requirement for power output- tube and solid state?

Also, any suggestions for good cables to pair with the 804N to bring out its potential?

Thanks for your help.