Hi, all. I have a 450mhz B&W G3 at home that I might upgrade this summer. I've got a decent though small hard drive in it and 512 RAM. I was thinking of installing a slightly better video card to smooth out the GI, maxing out the RAM, and putting in one of those ZIF upgrades. But how fast of a processor upgrade is actually worth it? I'm assuming that there are bottlenecks elsewhere in the computer that will eventually make speed increases futile, so how fast of an upgrade could I install before theoretically hitting that ceiling? Also, I am assuming that a G4 upgrade would be the best option, but let me know if that is foolish. I would still be using it for itunes encoding, so the "velocity engine" would be a bonus for me. And when you put in the new processor, what are you actually taking out? Just the processor? Is that worth anything on ebay? Thanks.