thats great, does that mean you can boot off the zfs file system using the Darwin efi bootloader?
If yes then this is a great find. You should cut and paste the commands you used and make a guide.
I looked into the nforce raid drivers and found them for Linux, would these be any use in osx I imagine they
would be somewhat the same.

I'll get some drives out of an old pc I have and give the zfs raid a go, hopefully you get a chance to do a guide
soon, as I'm not sure which of the above solaris commands I need to use, and how much I need to change them.
I presume we get an install running first then make the zfs raid then copy the install to it then make it bootable.
do we need any zfs kexts or are the standard soft raid ones fine?

Eagerly waiting a guide!