I disagree with both of you. He said he was going to use a Raptor and back
it up to a partition on the 250GB disk. The raptor is high performance, if
is gets backed up nightly (like with Acronis True Image) who cares if the
Raptor fails-the data is safe. The original posters plan is good-however I
would skip making a backup partition and just backup to a single image file.

--Dan