Hi, After receiving my perfect iMac i7, I want to buy a drive for backing up. I know you can daisy chain drives but I want to make sure its got two FW800 ports for this and not a FW800 and FW400. I have been looking at possibly getting two of these. 1 for time machine and 1for my itunes catalog. http://g-technology.com/products/g-drive.cfm Does anyone recommend any more or have an opinion on the above? Thanks Ade.