Hi. I have a Mac Pro Quad Core 2.8 Intel Xeon. I am working in video editing in FCP for a TV station. Inside my computer I have a 256GB hard drive for software and system ONLY, and a 700GB for storage, scratch and where the video files are. I have 2 internal hard drive slots free. I was wondering if removing the 700GB drive and installing 3 new drives of the same capacity and brand, PLUS a RAID PCI card to handle the 3 drives. OR Use the 3 drives in RAID just via software, because I am doing standard video, no HD. Actually the 700GB that I have is fine but I will have a lot of work coming over and constant. Let me know if: 1. The PCI raid is worth it. 2. The arrange of 3 drives without PCI card is actually enough (I think it is) 3. I need capacity and speed so: can I use 3 1TB drives? or 3 700GB faster drives? 4. Or is better to have 5 external hard drive raid arrange? (more bulky on the desk). The budged is basically mine. Thank you very much for your input.