I used to do raid 0 for my OS drive (2x 80GB intel ssd's) but I found that it was quite the hassle as well if anything went wrong. Since I was playing games at the time, I decided to break down the Raid array and installed my OS on one of the drives and migrated my steam & Origin folder to the other drive for storage. I liked it this way. Didn't notice any real drop in speed either.
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