Hi, I am removing my 640Gb starup drive and 2x500gb (which have been stripped raid 0) and replacing them with 1 SSD via spare Sata and 4 x 2TB western digital drives. I still have important data on the 3 drives that I am going to remove. I need to get an external enclose and thought the fastest way would be via esata. That means I need a PCI esata card. Can anybody recommend one that is garunteed to work on the Mac Pro 4.1? The reason I want to go esata is because eventually I wil be clearing those drives and using the enclosure as a backup.