Newegg has the Enermax ETD-T60 Vegas Duo CPU Cooler (Down Flow) With PWM Twister Bearing Fan for $50 - $5 off with coupon code ENERM612
[Exp 6/17] - $10 rebate
[Exp 6/30] = $35
with free shipping. Features a thermal resistance performance of 0.12°C/W, 16 to 21 dBA noise level, and 33.26 to 75.98CFM air flow.