There are lots of great ones but I personally like the Noctua NH-D14 Processor cooler. You could get a CORSAIR Hydro Series H80 (CWCH80) High Performance Liquid CPU Coolerat and be totally satisfied.
Zalman has fantastic coolers also...it really depends on what matters to you...cosmetics, LED, type of mount, price, rebates....
I would use any of the above on my Sabertooth 990FX r2.0 Fx 8350 combo and be very content...good luck and let us know what you decide.