Thanks for all the advice, you folks have been a huge help. I’m a little too tight to get the G brand drives, but I found:
LaCie 301199U Big Disk Extreme+ 1 TB Firewire800/Firewire400/USB 2.0 with RAID External Hard Drive
https://www.amazon.com/LaCie-301199U-Firewire800-Firewire400-External/dp/B000T9B46G/ref=sr_1_1?ie=UTF8&s=electronics&qid=1229098045&sr=1-1
on amazon for $185. Do you think I should go for this. It seems to follow the basic idea of what you all are talking about.