Picked up a G4 466mhz Digital Audio Powermac, petty much striped of anything not soderd in!!! Got 1 256, and 2 128mb sdram pc 133,,,and a 0 gig hd out of a burnd out Imac,,,just need a compatible video card...There are a few used part stores that have misc video cards for cheap here local. How do I no if they are mac comatible,,,Do I need mac firmware????? Very new with mac,, so If its possible to explain in mac for dummies language,,,Ill try to keep up, Thanks alazure1