Thanks so much for the response! You've helped a lot.

I wasn't thinking IDE RAID because I wasn't under the impression that it was very good. But if you think that it's a good idea, I'm perfectly willing to put my money to better use Plus, I'm getting a SOYO Dragon Ultra mobo, and it has IDE RAID built in, so that would be a plus, right?

My reasoning for a RAID on the OS? I was under the impression that it was faster, and I'd get better performance from it. Sure, I'd love to have my data much more secure, and I might go that route. But with your new suggestions, I might have to think up a whole different route I want to go in

My ideal (and I'm sure, the general ideal) would be fast running programs and OS, plus secure data files. I also want to keep my 100GB drive intact with all its files still on there.

Do you think I'd be able to run 2 RAIDs on the same system off the mobo?

*edit* I looked at the mobo's spec page and it says:

R: Embedded Hipoint IDE-RAID chip, providing ATA-133 IDE-RAID 0,1,0+1

Are those the configs it supports? Can someone explain those to me?