It's all back up! It took the required ten hours or whatever to do it, but my boot disk is booting, has most of the relevent software on it, and more importantly, has a ghost snapshot on the data RAID. Woo.
Oh, and the new Ghost 9.0? Easy to use, just a snap. I recommend it.
Of course, the RAID isn't protection from catastrophic machine failure (e.g. it burns down or the power supply explodes due to lightning strike, eating all drives simultaneously), but for now that's a risk I need to live with.
Thought Ghost will backup to CD (or DVD, if I had a DVD burner, which I don't) across multiple disks. Woo^2.