When I get my iMac I am going to be getting this external hard drive enclosure. The enclosure is capable of taking two bare drives and using hardware RAID. I will be using the enclosure to store my data. Now my question is if I decide not to go with the hardware RAID option and use Disk Utility on an i7 iMac for software RAID, how well will the iMac handle data transfers along with normal processes simultaneously? Will going the software route hinder other processes for example, Photoshop? Also, does anyone here have a RAID setup with an iMac or any other Mac and what is your experience like?