I have a Vostro 410 that came with a 320gb drive (SATA 0). It has the operating system (Win XP) on it. I have added 2 new 1 TB drives (as SATA 1 & 2) and would like to set them up in a RAID 1 configuration and load Windows 7 on them ina dual boot configuration. Can I do that without destroying all of the data on my 320 GB drive? I also want to set the new drives up with 3 partitions. Can I do that after setting up RAID 1?