Amazon offers the Cooler Master Hyper T4 CPU Cooler
, model no. RR-T4-18PK-R1, for $19.99. This $15 mail-in rebate
cuts it to $4.99
. With free shipping
, that's the lowest total price we could find by $10. It features a 120mm fan, four direct contact heat pipes, snap-on brackets for fan, and support for many Intel and AMD processors. Rebate expires August 31.