I just set up a raid 0 array on my gigabyte ga-8knxp over the past weekend.
It took me a while to figure out. And I did it with the same drives as you. Two of them.
Do you have them plugged in on the mobo?
It's really not too hard. Make sure they're both plugged in, each on it's own ide.
Remove all jumpers.
Make sure the raid you're using is enabled in the bios and you've installed the drivers
for it.
When my pc is booting there's a quick line saying hit cntrl - g to enter set up.
That takes me into the area for setting up an array. Just select the drives you
want to be in the array, select the type of array ( 0 ), and hit create array or whatever
keys it says to create the array.
ONce you've created the array you need fdisk and format the drive. You
won't see the drive showing up in windows till you do. Mine shows up as D:\
I don't know any tutorials for setting up a raid, I just used my manual.