If you really really want to do your head in – and possibly never fly again – try out this free online Flash based air traffic controller sim. I get as far as starting it up, and then sit there paralysed with indecision as all these little dots appear and converge on one another with relentless determination.
And you say people do this stuff for a living? For real? To save my sorry little life while I’m in the air? Give ’em a huge raise immediately!