I have a gutted Power Mac G4 (PCI Graphics) with just the power supply. I want to mod it and turn it into a Firewire Enclosure. I already have a 4 drive 800/400 Firewire Bridgeboard from Cool Gear and 4 hard drives to install. I have done alot of searches and can't find anything anywhere on how to mod the power supply as a switchable supply without having it connected to a motherboard. I don't mind taking that power supply out and putting in something else but I haven't found a "firewire power supply" to put in its place.

I am open to just about anything, short of buying a 4 drive firewire enclosure. Any help would be greatly appreciated.