I've heard a lot about 64 bit processing being the future and that everything currently is 32 bit. But what exactly is this? I'm not looking for a ton of information but just an overview. What do you need for 64 bit computing? Is it all in the processor and assuming it is, what processors currently support it? I know AMD 64 does but what else? I'm currently using an Intel Core 2 Duo. Also, how will this work with Vista?