Well, maybe you can now convince your CTO to go for decent 30" screens, just to make sure?
I used my own money to buy three 30" monitors - XMetaL (4, 5.5, and 6) will use all three monitors; an individual file will not expand beyond the dimensions of the primary monitor but the space can easily be filled by a few (or a few dozen) topics.
Due to the bug of a topic not expanding beyond the dimensions of the primary display I set up my laptop to use the external 30" monitor as primary when it's connected.
Lee