At last! My new server is in place and running on a RAID1 with regular, remote backups! I lost a couple of hours to a stupid mistake that I made. I couldn't figure out why it refused to boot from the hard drives... and after much messing around with formatting, redeploying linux and trying to boot from USB, I discovered it was due to me not having set the boot partition to active!
All that's left to do now is recompile everything for the ATOM 330 architecture, then I can cancel my Linode subscription!