Hi, people keep bringing up the idea of a quad-G4 which sounds really, really cool. Is the G4 and the motherboard designs that Apple currently has capable of such a configuration? I really don't know anything about these things, so any info would be usef. Additionally, do we have an idea how a dual-processor speed would rate against a single processor? Or for that matter how much faster a quad would be over either a single or a double? I don't want to assume that the speeds would be in direct proportion to the number of processors, however, if anyone would care to share their opinions on this, I would appreciate it. Thanks again!