Ok, I have an old Blue and White G3 and I want to know what the best way to upgrade it would be. The cheaper the better but if I can upgrade the hell out of it for under $600 then I would go that route... My big question is, would there be any way that I could take out my old motherboard and put in a new G4 motherboard??? I say this because I have 768mb of PC100 168pin SDRAM DIMM and I wonder if it would work in a G4 motherboard? I also have an 80Gig drive and a DVD-ROM and a TV Tuner card that I don't want to have to buy again if I were to buy a used or refurbished G4. So if I can just by a good G4 motherboard, would it work in my G3 case??? And which model should I buy? Any hints? Thanks for any help!!!