i'm not USAF, but my ex boyfriend is... he is a HAN member, but not on much...
he was supposed to get a couple grand signing bonus because he signed on for 6 years (instead of 4), but when he got out of bmt and tech, they changed it to a rank advancement which worked out to more money in the long run...
i don't know much about jobs other than my ex's.. he's security police and he seems to enjoy it as much as anyone could enjoy a job...
the only advice i have is don't get your heart set on going to a certain base... your "dream sheet" is just that... uncle sam doesn't care where you want to go or where your significant other lives...
good luck to ya