I have 2 PCs (one is the wife's) that I have recently built, both using a RAID0 configuration with 2 identical SATA HD's. Each has a third independant drive which I inted to back up critical files in each system. Does anyone have a recommendation for software that can do a full or incremental backup, and which is able to backup system files that are in use? (I've tried some in the past that bomb out if the system file is in use, similar to attemtong to copy an active system file).Thanks- Bruce.

Hello,Acronis seams to be good.http://www.acronis.com/I have made some testing and it works.

Thanks Emile,I'll try this. Bruce.