Okay, so I've been playing around with my Raid 0 setup and I think I've finally got the best results.
My setup is 2x 320 Seagate and a 400 Western Digital running on my setup below. I have them setup in Raid 0 on a 64k block.
I used Sandra 2009 Pro to bench the read and response and HD Tach.
My one concern is that it seems that I got a good read speed but sacrificed a little bit of burst speed and also my response seems on the sluggish side.