The two best apps to use are:FWB RAID Toolkit and Connely SoftRAID.
I use FWB R/T on my 840av, and it's a very good system. SoftRAID tends to get better transfer speeds, or at least that's what I've read, but I have so far not been able to find a 68k version of it. I have SoftRAID 2.2, but it's PPC only. I'm pretty sure that SoftRAID 1.x is 68k, though.
Anyway, you can download FWB RAID Toolkit off our (or Retromac's) Hotline server, or if I get off my lazy bum I can upload it to my iDisk or something later today.
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