Newegg offers the Corsair Hydro Series H100i GTX Liquid CPU Cooler for $109.99. This $20 mail-in rebate drops it to $89.99. With free shipping, that's the lowest total price we could find by $13, although we saw it for $10 less after rebate in November. This liquid cooler allows you to monitor coolant temperature and adjust cooling performance directly from your desktop. It features two 120mm fans and a mounting kit. Deal ends February 8.