That is an nForce2 board right? If so, you should not have any corruption issues since the PCI divider is locked.
Even if it wasn't, I used to run my 2 Maxtors in RAID 0 on an Abit KT7-R overclocked 24/7 and never had an issue. I would not be afraid to do it at all, but remeber to back up religously! I have always backed up and never really lost anything important. I currently keep an 80GB external USB drive for back up storage of important files plus burn CDR's of the drives contents. Redundant back up.....
You should be fine....
Main DVD MM Rig:
CoolerMaster Storm Scout
AM3 Phenom II x4 955BE @ 3.6 ghz
Corsair H50 Watercooling kit
4.0 GB AData DDR3
GIGABYTE GA-MA770T-UD3P Mainboard
Western Digital 750GB 7200rpm w/32mb cache
Samsung 750GB 7200rpm w/32mb cache
Western Digital 1.0TB 7200rpm w/32mb cache
LG 20x DVDRW-DL "SuperDrive"
PNY GeForce 9800gt 1024mb w/Samsung 245BW 24" LCD
Corsair 620w Modular Power Supply
Logitech z-640 5.1's
Logitech Wireless Mouse
Win 7 Ultimate........