More great advice! Thanks chaps! I must admit, I was losing faith in PPRuNe reading some of the awful replies found in the 'Wannabe' forums! But the advice here has truly been a great help.
A word that has come up consistently is 'flexibility'. I assume that means I'd be willing to schedule my life around the demands of the job. The only point on my CV that alludes to any kind of the sort is my single status (I suppose). But what would some other examples be which illustrate that a person is flexible?