Newegg offers the factory-refurbished Corsair Hydro Series H60 CPU Cooler, model no. CWCH60, for $29.99 with free shipping. That's $33 under the lowest total price we could find for a new unit, although we saw a refurb for $10 less after rebate last fall. This liquid cooler features a pre-filled, closed-loop system, copper CPU cooling plate, sealed pump and reservoir, and 120mm fan. A 1-year Corsair warranty applies.