Hi, I've been using MacPro3,1 with Mac Pro RAID (first model) installed by CTO and this has been a very reliable setup for the last 8 years. I have 4 Barracudas with 3 of them in RAID 0 and the system has been running well with the exception of the annoying battery reconditioning process which occurs every three months. The life of the battery itself seems rather short and my battery have died twice in the last 8 years having to replace it both times. Now I'm planning to move up to MacPro5,1 (2010) and I want to install yet another Mac Pro RAID (newer model) and build a RAID system using four SSDs. The question is: Is there anything I should be aware of in setting up a RAID system based on SSDs? What about the speed of the SSDs, 3G or 6G? Is there any other RAID hardware which would work well in a Mac Pro? Needless to say, speed is the key. I assume the subject has been covered in the past but not many people seem to talk about RAID inside classic Mac Pro these days. I want to know the basic issues before proceeding with buying these components and I would appreciate any input from anyone. Thanks.