I have been using a 120 GB Western Digital EIDE drive in my G4 for about a year. I also have 2 40 GB Ultra ATA drives installed. I recently picked up a 120 GB Ultra ATA Seagate drive that I put in place of one of the 40 GB drives. I am planning on setting up a Striped RAID using the 2 120 GB drives and installing Tiger on it. Is this possible even with the 2 different interfaces? If it is possible, would it be worth spending another $80 or $90 to get another Ultra ATA drive to use in place of the EIDE drive? Thanks, Kevin