How much of a speed boost would I get if I setup a leopard software RAID with two 640 WD black drives instead of using just one? I have two of them and I was curious about this. I was thinking that I might put a SSD in the second optical for osx/apps, and use the two WD blacks that I have for writes to a RAID. Does setting up a RAID for the writes sound worth it? I only have two extra drives for a RAID so I don't know if it'll make much of a difference. Anyway, I am really new to a RAID setup so I have no clue how to set it up or what would be the optimal settings... If anyone wants to walk me through it, I would appreciate it.