which expresscard>eSATA are you using? I like this idea. I never thought of it. Any idea if the expresscard supports 3.0Gbps or 1.5Gbps? If the expresscard supports 3.0Gbps, I wonder if my 2007 June MacBook Pro supports 3.0Gbps through expresscard. I know it does not support 3.0Gbps via it's chipset.