Hi there, We know and we have been waiting for a new OS of Mac ,the most anticipating 64 bit version Leopard. I know i am not the only person here that having and proud to have an Intel Core Duo user which is only supporting 32 bit version of its OS. So what are the catch having a 64 bit version over 32 bit version ? Why if by any chances i should reconsider it twice? Is this because the marketing persuasion or is it because it's the right time to convert it ?