I've been in IT for about 20 years and have done many RAID setups, mainly on servers, but a few desktops.
I'm a bit rusty on desktop RAID, but did a quick google refresher. I'll help you get RAID 1 up and am reachable via Skype should you need to chat voice. In cases like this it comes in handy.
Specific setup depends on you BIOS implementation. Is this an existing setup or a fresh OS load?