So you may have noticed in another thread that my iMac G4's monitor died. I really don't want to drop $600 to replace the logic board on a 3yr old computer. So I'm thinking I'm going to get a G5 and 20in display. The problem is I don't have that kind of cash right now. Could I just get the display and hook it up the the iMac for now? I know the iMac only does mirroring, how would that work on a larger display?