hmm, what about a 50 pin connector from a SCSI cable? IIRC the iMac lobo uses a 50 pin like that. I just can't remember if the drive uses the same size of 50 pin connector.
If it does you could just hack that up and connect to a 40 pin PATA and a 4 pin molex connector.
If it does you could just hack that up and connect to a 40 pin PATA and a 4 pin molex connector.