Raid 5 in Disk Utility

[dellis14]

Can anyone point me in the direction to get a step by step guide to setting up a Raid 5 using the Disk Utility and 3 spare drives? I have the main OS files on a 80gig drive and I would like to mount the 3 drives as Raid 5. Just shooting in the dark now.. Screen shot is attached. Thanks!!!!
file:///home/dave/Desktop/Help.png

[dellis14]

Can someone tell me how I should repartitioning the drives? Did I also put this question in the correct spot:o on the form?