Sata Questions?

Okay, now It has come to the point where I need more space. :( Unfortunately I have never used SATA before and never really looked into it before.

I have decided to go along with SATA as i have used up all my IDE channels. I have also decided to go with the Samsung p80 series as it seems its a favourite! agree? (feel free to suggest anything else if you don't :))

Now my questions start: Should I go with a single 160GB drive and just add it to my current setup? OR Should I get two 80GB drives, set them up in RAID 0 and use that for Windows and games only, and the other drives for general storage?

What are your opinions? RAID 0 worth it, or would it just be easier to get the single big drive?

Cheers dudes
ant

EDIT: Nevermind, decided to go for the single drive in the end. :)