Our recommendation: get a laptop with an Express Card interface,
and go with Addonics' Express Card eSATA controller above,
because they have already done the necessary integration
with external storage enclosures.
My controller supports port-multiplier, both my express card and my e-sata on the motherboard (Asus P5q pro turbo).
I already knows addonics, but since both my e-sata (express card, and desktop motherboard) does not work, I suspect that is a problem of my External box connector. So I'm tinking of buying an external box from addonics.