Ok, I need some advice. I have a Mac Pro and I am looking to buy some HDDs for the beast. I want a really fast system/scratch disk and a 1TB Media HDD. For the system drive I am leaning towards a Raptor, but I am not sure if these are the fastest for my uses. I want a drive that can boot OS X fast and launch Applications fast. As for the 1Tb drive which would have the fastest coping ability for large files?