I would like to know if I should bother setting up a RAID array in my new mac pro 2.93 Quad. I found a lot of info about the pros and cons of the different RAID set-ups. But most forums that deal with RAID info are run by video pros that work with huge files, and they never discuss if it's worth setting up RAID in general, for them that's a given, they just discuss the specifics. I'm a graphic designer, and won't be doing any video or 3D work on the MacPro, so my needs are different from video pros. As I understand the issue, a RAID array can give you a substantial speed bump. Done with Disk Utilities, basically for free, when you make sure to have proper back up. Normally people are happy to spend an extra $1k for substantial speed improvement when it comes to processors, so I was wondering why RAID is not more popular when you can set up a back up system with extra HDs for comparatively little money. So please people let me know what your experiences are with RAID! Which RAID do you use, do you really see a big speed improvement for your daily work, does it affect your Photoshop work, iTunes functionality? Have you experienced crashes, power outages with data loss etc?