Great point,

I myself keep my main system environment on a central RAID array (properly backed up of course,) but then also keep a hard-drive called "Bench Drive," which contains a bare-bones XP-32 install plus all necessary stress test, temp monitoring, and benchmark software. I conduct my overclock endeavors on this bench drive, so that my main data and system information is free from any ill-effects caused by bluescreens or corrupt writes.