Hi there Howard
I switched to two monitors when I got X1 and to me, it's a really intuitive way to work (I'm using 24"HD and 22" monitors) - and I've never used screensets that much so the two monitor approach really works well for me.
For example, when I'm tracking guitar and bass, I have X2's Track View open on my main monitor and use the other screen to show my POD Farm UI and a chromatic tuner - this is really useful as the standalone version of POD Farm isn't dockable, nor can it be set to 'always on top'. When I'm mixing, I float the Console View and drag that over to the second monitor.