Other World Comouting (OWC) today announced that new 2GB memory upgrade kits for Apple’s new iMac Core 2 Duo 1.83 to 2.33GHz 17″, 20″, and 24″ models are now available worldwide, starting at US$259.99, with a Lifetime Advance Replacement Warranty. Also now available through OWC are 2GB modules for $729 and 1GB modules starting at $131.99