Thanks Richard. That's kind of what I was thinking, but didn't have any direct experience to back it up. I guess the issue was that with 2 drives you double your chance of having a hard drive fail. In a RAID 0 array this would put your data at more risk. I've never scene a drive fail though (Apple usually builds good quality computers...

).
While I would love to get a couple of the Raptor drives, up here they're a little too pricy. I would need something more than the 36GB drives (I filled an 80GB drive pretty quick), but the 74GB models run well over $300 Canadian, and shipping from elsewhere isn't cheap either. For now I think the Seagate drives will have to do.
Thanks again,
goates