What is one of these worth? I'm planning on offering it with my G4-upgraded Yosemite when it hits the auction block some time in the future, but if its worth $250 I might sell it now. It's the original processor from by Blue & White G3, an aluminium 450 MHz, which is supposedly more stable than the copper ones. I never had a problem with it but I lusted for the speed of the G4 with AltiVec for my Photoshop work. I went with Sonnet's Encore G4 500 MHz and am thrilled with it. But an extra processor might be worth something to somebody and I certainly have no use for it.