I'm thinking about upgrading a G4 Gigabit Ethernet doing the following: I've got a Powerlogix dual 1.5 GHz 7447a cpu card I could use to replace the dual 450 GHz cpu. However, I don't have a fan for that since it was originally a Cube upgrade card, and it came with a base fan for the Cube. So, for heat sink, I assume I could NOT use the heatsink from the dual 450, since there is no fan for that. Should I see if I can get a heatsink/fan from OWC? I've got an Adaptec SCSI card, but no SCSI drives. Should I get a SCSI drive if I want HDD's beyond the 2 you can have with the 'on-board' IDE controller, or should I think about getting a SATA card for use with SATA drives? If I do get a SATA card, will I still be limited to 128 GB for a partition? Is there an advantage to SATA card/drives over the stock IDE? Thanks for input!