Songs for my girlfriend when im gone to boot camp?

i have decided to re-enlist in the military after serving in the army (infantry).. i will be enlisting in the marines.. signing on april the 24th.. i will be back with an old girlfriend by then.we have spoke about it already.but we are taking it slow.. i told her today that i would like her to see me off at the airport where i will be giving her my old id tags (dog tags) and would also like to give her a cd with songs on it .. i know the ones like dixie chics-traveling soldier, when im gone by 3 doors down and here without you by them also as well as the obvious one nickleback-so far away.. and a song she had me listen to a few weeks ago about thinking of the past... any advice on others? thank you.