I would also like to know the answer to this.

At the moment I am setting up two SATA drive in RAID 0 and will try added my two IDE drives once I have a new install of XP running.

Couldn't you trick the system by putting the IDE HD on the 2nd IDE channel where you would normally have your DVD or CD-ROMs on and do it that way..

If I can't, then I'm in a muddle as I need over 100GB of unedited digital video footage on my new SATA drives.

I do have a second PC and if I could figure something out I'll post back.