which layout are you thinking about?

sample layouts: http://solidice.com/keyclone/layouts/index.html

how about a portrait mode, horizontal split for your wide screen?

ie:
that would probably offer the best real estate for both wows. of course, the portrait mode screen is a bit different if you are not use to it.

it all boils down to how much you really want to interact with the other screen. i would guess most people (like me) just glance at them to make sure they are still where they should be and not falling off a cliff (i looked over once to see two of my guys plummeting to their deaths... and in thousand needles, that takes a while )

talk to you soon,

Rob