I have a Seagate Barracuda ATA IV 7200 80GB that I pulled from my cube and want to hook up externally to my 17" PB.. the question is, is FW800 overkill? The cost of the FW800 enclosure is ~$150, with the FW400 ~$80.. will I see a difference? Is my harddrive bandwidth faster than FW400 and so do I need FW800? It'll be used for music production. <edit> Honestly, I just answered my own question... but for other reaons. I'll need the single FW400 port for my motu828, so I have to get the FW800, but the question still might be of use to other readers. Now let's decide on an enclosure and a source. Anyone? Thanks!