OK, I am about to order 2 x 2TB hard drives (Hitachi Deskstar 5K3000) to add to the 3 HDD's I already have on my v1 WHS, bringing the total to 5. But my MSI 785GM-E51 mobo only has space for 4 SATA drives. Is this where a SATA controller card comes in? If so, which one have people used successfully? Ideally, I would like to have a seamless addition to the WHS without any loss of data or massive reconfiguring. Thanks.