i have dual monitor with my laptop and an old crt monitor and without the crt my laptop screen seems cramped like it hasnt got enough space for me to work on properly as i usually have two programs open at the same time. I even sometimes watch a film and play a game at the same time when really bored lol but whilst my desktop can manage that easily my laptop does struggle if the game as any more graphically intensive then worms 2d.
Matt