With a plethera of processor upgrades available to the entire G4 tower lineup with the exception of the MDD, I was wondering what the future holds in terms of upgradeability to the MDD's single and dual processors by third party manufactuers? I don't want to rule out the possibility of a G5 processor upgrade for the MDD's but citing the costs and the fact that the G4 and G5 are virtually night and day in comparison, most notably the FSB, make this an improbability, but has the processor upgrades available to the AGP, Sawtooth, and Quicksilver fallen short of the MDD?