I've just bought a dual Firewire/USB to SATA bridge board
It will be placed in an external enclosure and house two SATA drives. What kind of power supply will be suitable for all of this? I hate "wall warts" so common for external hard drives and aim for a self-contained PSU which will mount inside the enclosure alongside the drives and the mentioned PCB. The enclosure will be a self made 19" rack enclosure with shock-mounts to protect the drives and remove any vibration noise.