Well see, what I was thinking, is sometime after I get a job, I'd really like to buy a lot of Hard Drive space, but Terrabytes are pretty expensive, around $350 I think, while 2 500 GBs which would equal 1 TB is about $200 on newegg. So I was wanting to buy 4 new 500 GB hard drives, than do what I was saying, 200ish GB for Operating Systems and 1.8ish TB for all my crap. Since they're new, they wouldn't have data on them, therefor, it wouldn't matter if I had to format them and what not.
Also, I have 6 SATA plugs on my mobo, just wanted to point that out, if there needs to be something special about the motherboard in order to merge them, my motherboard's in my sig, could you tell me if my motherboard has it?