Optiplex 740 MiniTower Raid1?

Hi all,

I am looking at buying a Dell Optiplex 740 Minitower tonight to run as a webserver and raid 1 is crucial to me. After doing lots of searching online i haven't been able to find much information on what i need.

Does this model have RAID1 options in the BIOS? I will be running a 160gb disk and have a few spare 160gb disks ready for failure.