I suggest 2 things, I build industrial computers and see problems all day long.
1) buy a usb hard drive and copy all your kma files to it for a backup.
2) Keep as small c: (system drive with nothing but an os, and your programs on it.
3) get Norton Ghost 2003 and make an image of your c: drive to your d: drive.
If you do this, and the system drive fails, you can reimage your hard drive and be back up in less than 10 minutes.
I would make a backup on a weekly basis, it takes me 10-15 minutes to do this.
This will insure you, not to miss a gig. I even keep a copy of the backup on the usb drice in case the D: drive fails.
I thought you were the one that posted in another thread talking about how great your promise raid system was? did it fail 