Other World Computing (OWC) today announced availability of new model OWC Mercury Extreme G4/933MHz processor upgrade and immediate price reduction on its entire Mercury Extreme G4 line. Each Mercury Extreme G4 features 256KB of 1:1 L2 Cache and 2MB of high-speed L3 Cache. All units are covered by OWC’s three-year limited warranty and offer a 30-day, 100% money-back guarantee. New pricing is as follows: