Just ordered an OWC Mercury Elite Pro Dual with two 120 Gb SSD's from here: http://eshop.macsales.com/item/Other World Computing/MEQMH0GBK/ I asked that it be configured to RAID 0 (Striped). I know that I shall have to format to Mac OS X Extended Journaled with GUID. My question is: will formatting the disks destroy the RAID set up or will the Raid 0 configuration survive the format? How difficult is it to set up a RAID 0 in Disk Utility? I checked that the option to do so is there and the SSDs are matched so it shouldn't be a problem, right? Does it take a long time to configure twin SSDs to RAID 0? I'll be using Firewire 800 to connect the external to my Late 2009 iMac. I've never done this before, I imagine that it's fairly straight forward but I thought I'd check here first and seek the opinions of more advanced users.